Object Image

Image processing objects, used to convert, draw, and store images

The Image object belongs to the gd module and is created:

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var img = gd.create(640, 480);
var img1 = gd.load(data);

Inheritance

Member attributes

width

Integer, query image width

1readonly Integer Image.width;

height

Integer, query image height

1readonly Integer Image.height;

format

Integer, query the image source format, the result is gd.PNG , gd.JPEG , gd.GIF , gd.BMP , gd.WEBP

1readonly Integer Image.format;

type

Integer, query the image type, the result is gd.TRUECOLOR , gd.PALETTE

1readonly Integer Image.type;

colorsTotal

Integer, query the total number of colors in the image color table

1readonly Integer Image.colorsTotal;

transparent

Integer, query and set the specified color as transparent

1Integer Image.transparent;

progressive

Boolean, query and set whether the image is progressive or not, when only jpeg format is supported

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Boolean Image.progressive;

alphaBlending

Boolean, query and set whether to calculate the alpha layer when drawing, the default is true

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Boolean Image.alphaBlending;

Member function

getData

Return image data in the specified format

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2Buffer Image.getData(Integer format = gd.PNG,
    Integer quality = 85) async;

Call parameters:

format : Integer, specify the format of the returned data, allowed values are gd.PNG , gd.JPEG , gd.GIF , gd.BMP , gd.WEBP , the default is gd.PNG
quality : Integer, used to specify the compression quality when the format is gd.JPEG or gd.WEBP , the default is 85, other formats ignore this parameter

Return result:

Buffer , returns formatted data

save

Store the image data in the stream object according to the specified format

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3Image.save(Stream stm,
    Integer format = gd.PNG,
    Integer quality = 85) async;

Call parameters:

stm : Stream , specify the stream object to be stored
format : Integer, specify the format of the returned data, allowed values are gd.PNG , gd.JPEG , gd.GIF , gd.BMP , gd.WEBP , the default is gd.PNG
quality : Integer, used to specify the compression quality when the format is gd.JPEG or gd.WEBP , the default is 85, other formats ignore this parameter

Save the image data in the specified file according to the specified format, the file will be forcibly overwritten

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Image.save(String fname,
    Integer format = gd.PNG,
    Integer quality = 85) async;

Call parameters:

fname : String, specify the file name
format : Integer, specify the format of the returned data, allowed values are gd.PNG , gd.JPEG , gd.GIF , gd.BMP , gd.WEBP , the default is gd.PNG
quality : Integer, used to specify the compression quality when the format is gd.JPEG , the default is 85, other formats ignore this parameter

colorAllocate

Apply for a color number for the specified color. For gd.PALETTE image, the color number is the palette index; for gd.TRUECOLOR image, the color number is the rgb coded value

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3Integer Image.colorAllocate(Integer red,
    Integer green,
    Integer blue);

Call parameters:

red : Integer, the red component, the range is 0-255
green : Integer, the green component, the range is 0-255
blue : Integer, the blue component, the range is 0-255

Return result:

Integer , returns the color number, returns -1 if not successful

Apply for a color number for the specified color. For gd.PALETTE image, the color number is the palette index; for gd.TRUECOLOR image, the color number is the rgb coded value

1Integer Image.colorAllocate(Integer color);

Call parameters:

color : Integer, combined color value, can be generated by functions such as gd.color , gb.rgb, gd.rgba

Return result:

Integer , return the color number, return -1 if not successful

colorAllocateAlpha

Apply for a color number for the specified color and transparency. For gd.PALETTE image, the color number is the palette index, and for gd.TRUECOLOR image, the color number is the rgba coded value

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4Integer Image.colorAllocateAlpha(Integer red,
    Integer green,
    Integer blue,
    Number alpha);

Call parameters:

red : Integer, the red component, the range is 0-255
green : Integer, the green component, the range is 0-255
blue : Integer, the blue component, the range is 0-255
alpha : Number, the transparency component, the range is 0-1.0

Return result:

Integer , returns the color number, returns -1 if not successful

1Integer Image.colorAllocateAlpha(Integer color);

Call parameters:

color : Integer, combined color value, can be generated by functions such as gd.color , gb.rgb, gd.rgba

Return result:

Integer , return the color number, return -1 if not successful

colorClosest

Find the closest color number for the specified color. For gd.PALETTE images, the color number is the palette index; for gd.TRUECOLOR images, the color number is the rgb coded value

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3Integer Image.colorClosest(Integer red,
    Integer green,
    Integer blue);

Call parameters:

red : Integer, the red component, the range is 0-255
green : Integer, the green component, the range is 0-255
blue : Integer, the blue component, the range is 0-255

Return result:

Integer , return the color number, return -1 if not successful

Find the closest color number for the specified color. For gd.PALETTE images, the color number is the palette index; for gd.TRUECOLOR images, the color number is the rgb coded value

1Integer Image.colorClosest(Integer color);

Call parameters:

color : Integer, combined color value, can be generated by functions such as gd.color , gb.rgb, gd.rgba

Return result:

Integer , return the color number, return -1 if not successful

colorClosestHWB

Find the closest color number for the specified color. This method uses Hue/White/Black to find the closest color. For gd.PALETTE image, the color number is the palette index, and for gd.TRUECOLOR image, the color number is rgb Coded value

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3Integer Image.colorClosestHWB(Integer red,
    Integer green,
    Integer blue);

Call parameters:

red : Integer, the red component, the range is 0-255
green : Integer, the green component, the range is 0-255
blue : Integer, the blue component, the range is 0-255

Return result:

Integer , return the color number, return -1 if not successful

Find the closest color number for the specified color. This method uses Hue/White/Black to find the closest color. For gd.PALETTE images, the color number is the palette index, and for gd.TRUECOLOR images, the color number is rgb. Coded value

1Integer Image.colorClosestHWB(Integer color);

Call parameters:

color : Integer, combined color value, can be generated by functions such as gd.color , gb.rgb, gd.rgba

Return result:

Integer , return the color number, return -1 if not successful

colorClosestAlpha

Find the closest color number for the specified color and transparency. For gd.PALETTE image, the color number is the palette index, and for gd.TRUECOLOR image, the color number is the rgba encoding value

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4Integer Image.colorClosestAlpha(Integer red,
    Integer green,
    Integer blue,
    Number alpha);

Call parameters:

red : Integer, the red component, the range is 0-255
green : Integer, the green component, the range is 0-255
blue : Integer, the blue component, the range is 0-255
alpha : Number, the transparency component, the range is 0-1.0

Return result:

Integer , returns the color number, returns -1 if not successful

1Integer Image.colorClosestAlpha(Integer color);

Call parameters:

color : Integer, combined color value, can be generated by functions such as gd.color , gb.rgb, gd.rgba

Return result:

Integer , return the color number, return -1 if not successful

colorExact

Find the color number corresponding to the specified color. For gd.PALETTE image, the color number is the palette index; for gd.TRUECOLOR image, the color number is the rgb coded value

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3Integer Image.colorExact(Integer red,
    Integer green,
    Integer blue);

Call parameters:

red : Integer, the red component, the range is 0-255
green : Integer, the green component, the range is 0-255
blue : Integer, the blue component, the range is 0-255

Return result:

Integer , returns the color number, returns -1 if not successful

Find the color number corresponding to the specified color. For gd.PALETTE image, the color number is the palette index; for gd.TRUECOLOR image, the color number is the rgb coded value

1Integer Image.colorExact(Integer color);

Call parameters:

color : Integer, combined color value, can be generated by functions such as gd.color , gb.rgb, gd.rgba

Return result:

Integer , returns the color number, returns -1 if not successful

colorExactAlpha

Find the specified color and the color number corresponding to transparency. For gd.PALETTE image, the color number is the palette index, and for gd.TRUECOLOR image, the color number is the rgba code value

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4Integer Image.colorExactAlpha(Integer red,
    Integer green,
    Integer blue,
    Number alpha);

Call parameters:

red : Integer, the red component, the range is 0-255
green : Integer, the green component, the range is 0-255
blue : Integer, the blue component, the range is 0-255
alpha : Number, the transparency component, the range is 0-1.0

Return result:

Integer , return the color number, return -1 if not successful

1Integer Image.colorExactAlpha(Integer color);

Call parameters:

color : Integer, combined color value, can be generated by functions such as gd.color , gb.rgb, gd.rgba

Return result:

Integer , returns the color number, returns -1 if not successful

colorResolve

Find the color number corresponding to the specified color. If the color does not exist, apply for a new color number. For gd.PALETTE image, the color number is the palette index, and for gd.TRUECOLOR image, the color number is the rgb coded value

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3Integer Image.colorResolve(Integer red,
    Integer green,
    Integer blue);

Call parameters:

red : Integer, the red component, the range is 0-255
green : Integer, the green component, the range is 0-255
blue : Integer, the blue component, the range is 0-255

Return result:

Integer , return the color number, return -1 if not successful

1Integer Image.colorResolve(Integer color);

Call parameters:

color : Integer, combined color value, can be generated by functions such as gd.color , gb.rgb, gd.rgba

Return result:

Integer , return the color number, return -1 if not successful

colorResolveAlpha

Find the specified color and the color number corresponding to the transparency. If the color does not exist, apply for a new color number. For gd.PALETTE images, the color number is the palette index, and for gd.TRUECOLOR images, the color number is rgba encoding Value

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4Integer Image.colorResolveAlpha(Integer red,
    Integer green,
    Integer blue,
    Number alpha);

Call parameters:

red : Integer, the red component, the range is 0-255
green : Integer, the green component, the range is 0-255
blue : Integer, the blue component, the range is 0-255
alpha : Number, the transparency component, the range is 0-1.0

Return result:

Integer , returns the color number, returns -1 if not successful

1Integer Image.colorResolveAlpha(Integer color);

Call parameters:

color : Integer, combined color value, can be generated by functions such as gd.color , gb.rgb, gd.rgba

Return result:

Integer , return the color number, return -1 if not successful

colorDeallocate

Release the specified color number, the released color number will be replaced after applying again

1Image.colorDeallocate(Integer color);

Call parameters:

color : Integer, specify the color number to be released

clip

Set the cut window of drawing, after setting, all drawing will be cut inside the window

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4Image.clip(Integer x1,
    Integer y1,
    Integer x2,
    Integer y2);

Call parameters:

x1 : Integer, the upper left x coordinate of the clipping window
y1 : Integer, the upper left y coordinate of the clipping window
x2 : Integer, the lower right x coordinate of the clipping window
y2 : Integer, the bottom right y coordinate of the clipping window

getPixel

Query the color of the specified point

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2Integer Image.getPixel(Integer x,
    Integer y);

Call parameters:

x : Integer, specify the x coordinate of the query
y : Integer, specify the y coordinate of the query

Return result:

Integer , returns the color number of the specified point

getTrueColorPixel

Query the true color of the specified position

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2Integer Image.getTrueColorPixel(Integer x,
    Integer y);

Call parameters:

x : Integer, specify the x coordinate of the query
y : Integer, specify the y coordinate of the query

Return result:

Integer , returns the color number of the specified point

setPixel

Draw a point at the specified position

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3Image.setPixel(Integer x,
    Integer y,
    Integer color);

Call parameters:

x : Integer, specify the x coordinate of the drawing point
y : Integer, specify the y coordinate of the drawing point
color : Integer, specify the color number of the drawing point

setThickness

Set the width of the line, the default width is one pixel when the line, rectangle, arc and other methods are drawn. You can use this method to change the line width

1Image.setThickness(Integer thickness);

Call parameters:

thickness : Integer, the width of the line

line

Draw a line at the specified position

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5Image.line(Integer x1,
    Integer y1,
    Integer x2,
    Integer y2,
    Integer color);

Call parameters:

x1 : Integer, specify the starting x coordinate of the line
y1 : Integer, specify the starting y coordinate of the line
x2 : Integer, specify the end x coordinate of the line
y2 : Integer, specify the end y coordinate of the line
color : Integer, specify the color number of the line

rectangle

Draw a rectangle at the specified position

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5Image.rectangle(Integer x1,
    Integer y1,
    Integer x2,
    Integer y2,
    Integer color);

Call parameters:

x1 : Integer, specify the x coordinate of the upper left corner
y1 : Integer, specify the y coordinate of the upper left corner
x2 : Integer, specify the x coordinate of the lower right corner
y2 : Integer, specify the y coordinate of the lower right corner
color : Integer, specify the color number of the rectangle

filledRectangle

Draw a filled rectangle at the specified position

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5Image.filledRectangle(Integer x1,
    Integer y1,
    Integer x2,
    Integer y2,
    Integer color);

Call parameters:

x1 : Integer, specify the x coordinate of the upper left corner
y1 : Integer, specify the y coordinate of the upper left corner
x2 : Integer, specify the x coordinate of the lower right corner
y2 : Integer, specify the y coordinate of the lower right corner
color : Integer, specify the color number of the rectangle

polygon

Draw a polygon based on a given point

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Image.polygon(Array points,
    Integer color);

Call parameters:

points : Array, an array containing polygon points, such as [[1, 1], [1, 10], [10, 15], [10, 20]]
color : Integer, specify the color number of the rectangle

openPolygon

Draw an open polygon based on a given point

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Image.openPolygon(Array points,
    Integer color);

Call parameters:

points : Array, an array containing polygon points, such as [[1, 1], [1, 10], [10, 15], [10, 20]]
color : Integer, specify the color number of the rectangle

filledPolygon

Draw a filled polygon based on the given point

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Image.filledPolygon(Array points,
    Integer color);

Call parameters:

points : Array, an array containing polygon points, such as [[1, 1], [1, 10], [10, 15], [10, 20]]
color : Integer, specify the color number of the rectangle

ellipse

Draw an oval

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5Image.ellipse(Integer x,
    Integer y,
    Integer width,
    Integer height,
    Integer color);

Call parameters:

x : Integer, the x coordinate of the center of the ellipse
y : Integer, the y coordinate of the center of the ellipse
width : Integer, the width of the ellipse
height : Integer, the height of the ellipse
color : Integer, specify the color number of the rectangle

filledEllipse

Draw a filled ellipse

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5Image.filledEllipse(Integer x,
    Integer y,
    Integer width,
    Integer height,
    Integer color);

Call parameters:

x : Integer, the x coordinate of the center of the ellipse
y : Integer, the y coordinate of the center of the ellipse
width : Integer, the width of the ellipse
height : Integer, the height of the ellipse
color : Integer, specify the color number of the rectangle

arc

Draw a fan

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7Image.arc(Integer x,
    Integer y,
    Integer width,
    Integer height,
    Integer start,
    Integer end,
    Integer color);

Call parameters:

x : Integer, the x coordinate of the center of the sector
y : Integer, the y coordinate of the center of the sector
width : Integer, the width of the ellipse where the sector is located
height : Integer, the height of the ellipse where the sector is located
start : Integer, the angle at which the sector starts, the range is 0-360
end : Integer, the angle at which the sector ends, the range is 0-360
color : Integer, specify the color number of the rectangle

filledArc

Draw a filled sector

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8Image.filledArc(Integer x,
    Integer y,
    Integer width,
    Integer height,
    Integer start,
    Integer end,
    Integer color,
    Integer style = gd.ARC);

Call parameters:

x : Integer, the x coordinate of the center of the sector
y : Integer, the y coordinate of the center of the sector
width : Integer, the width of the ellipse where the sector is located
height : Integer, the height of the ellipse where the sector is located
start : Integer, the angle at which the sector starts, the range is 0-360
end : Integer, the angle at which the sector ends, the range is 0-360
color : Integer, specify the color number of the rectangle
style : Integer, specify the style of the fan, the allowed values are gd.ARC , gd.CHORD , gd.NOFILL , gd.EDGED and their combinations

fill

Fill the enclosed area from the specified point

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3Image.fill(Integer x,
    Integer y,
    Integer color);

Call parameters:

x : Integer, the x coordinate to start filling
y : Integer, the y coordinate to start filling
color : Integer, specify the color number of the fill

fillToBorder

Fill the enclosed area within the border of the specified color from the specified point

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4Image.fillToBorder(Integer x,
    Integer y,
    Integer borderColor,
    Integer color);

Call parameters:

x : Integer, the x coordinate to start filling
y : Integer, the y coordinate to start filling
borderColor : Integer, specifies the color number of the border
color : Integer, specify the color number of the fill

colorReplace

Replace the specified color in the image with the new color

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2Image.colorReplace(Integer src,
    Integer dst) async;

Call parameters:

src : Integer, specify the color to be replaced
dst : Integer, specify new color

clone

Copy the current image as a new image

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Image Image.clone() async;

Return result:

Image , return the copied new image object

resample

Generate a new size image based on the image stretch

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2Image Image.resample(Integer width,
    Integer height) async;

Call parameters:

width : Integer, specify the width of the stretch
height : Integer, specify the height of the stretch

Return result:

Image , return a new image object

crop

Cut part of the image into a new image

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4Image Image.crop(Integer x,
    Integer y,
    Integer width,
    Integer height) async;

Call parameters:

x : Integer, the upper left x coordinate of the clipping window
y : Integer, the upper left y coordinate of the clipping window
width : Integer, the width of the cut window
height : Integer, the height of the clipping window

Return result:

Image , returns the cut out image

flip

Mirror current image

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Image.flip(Integer dir = gd.HORIZONTAL) async;

Call parameters:

dir : Integer, mirror direction, allowed values are gd.BOTH , gd.HORIZONTAL , gd.VERTICAL , the default is gd.HORIZONTAL

rotate

Rotate current image

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Image.rotate(Integer dir) async;

Call parameters:

dir : Integer, rotation direction, allowed values are gd.LEFT , gd.RIGHT

convert

Convert current image type

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Image.convert(Integer color = gd.TRUECOLOR) async;

Call parameters:

color : Integer, specify image type, allowed value is gd.TRUECOLOR or gd.PALETTE

copy

Copy an area from an image to the specified location

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7Image.copy(Image source,
    Integer dstX,
    Integer dstY,
    Integer srcX,
    Integer srcY,
    Integer width,
    Integer height) async;

Call parameters:

source : Image, source image object
dstX : Integer, specify the x coordinate of the copy destination
dstY : Integer, specify the y coordinate of the copy destination
srcX : Integer, specify the x coordinate of the upper left corner of the copy source
srcY : Integer, specify the y coordinate of the upper left corner of the copy source
width : Integer, specify the width of the copy
height : Integer, specify the height of the copy

copyMerge

Copy an area from an image to the specified location

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8Image.copyMerge(Image source,
    Integer dstX,
    Integer dstY,
    Integer srcX,
    Integer srcY,
    Integer width,
    Integer height,
    Integer percent) async;

Call parameters:

source : Image, source image object
dstX : Integer, specify the x coordinate of the copy destination
dstY : Integer, specify the y coordinate of the copy destination
srcX : Integer, specify the x coordinate of the upper left corner of the copy source
srcY : Integer, specify the y coordinate of the upper left corner of the copy source
width : Integer, specify the width of the copy
height : Integer, specify the height of the copy
percent : Integer, specifies the transparency of the overlay

copyMergeGray

Copy the gray coverage of an area from an image to the specified position

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8Image.copyMergeGray(Image source,
    Integer dstX,
    Integer dstY,
    Integer srcX,
    Integer srcY,
    Integer width,
    Integer height,
    Integer percent) async;

Call parameters:

source : Image, source image object
dstX : Integer, specify the x coordinate of the copy destination
dstY : Integer, specify the y coordinate of the copy destination
srcX : Integer, specify the x coordinate of the upper left corner of the copy source
srcY : Integer, specify the y coordinate of the upper left corner of the copy source
width : Integer, specify the width of the copy
height : Integer, specify the height of the copy
percent : Integer, specifies the transparency of the overlay

copyResized

Stretch an area in an image and copy it to the specified position

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9Image.copyResized(Image source,
    Integer dstX,
    Integer dstY,
    Integer srcX,
    Integer srcY,
    Integer dstW,
    Integer dstH,
    Integer srcW,
    Integer srcH) async;

Call parameters:

source : Image, source image object
dstX : Integer, specify the x coordinate of the copy destination
dstY : Integer, specify the y coordinate of the copy destination
srcX : Integer, specify the x coordinate of the upper left corner of the copy source
srcY : Integer, specify the y coordinate of the upper left corner of the copy source
dstW : Integer, specify the stretched width of the copy
dstH : Integer, specify the stretch height of the copy
srcW : Integer, specify the source width of the copy
srcH : Integer, specify the source height of the copy

copyResampled

Stretch an area of an image and copy it to the specified position. Unlike copyResized, this method will dither the image when it is stretched.

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9Image.copyResampled(Image source,
    Integer dstX,
    Integer dstY,
    Integer srcX,
    Integer srcY,
    Integer dstW,
    Integer dstH,
    Integer srcW,
    Integer srcH) async;

Call parameters:

source : Image, source image object
dstX : Integer, specify the x coordinate of the copy destination
dstY : Integer, specify the y coordinate of the copy destination
srcX : Integer, specify the x coordinate of the upper left corner of the copy source
srcY : Integer, specify the y coordinate of the upper left corner of the copy source
dstW : Integer, specify the stretched width of the copy
dstH : Integer, specify the stretch height of the copy
srcW : Integer, specify the source width of the copy
srcH : Integer, specify the source height of the copy

copyRotated

Rotate an area in an image and copy it to the specified position

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8Image.copyRotated(Image source,
    Number dstX,
    Number dstY,
    Integer srcX,
    Integer srcY,
    Integer width,
    Integer height,
    Number angle) async;

Call parameters:

source : Image, source image object
dstX : Number, specify the x coordinate of the copy destination
dstY : Number, specify the y coordinate of the copy destination
srcX : Integer, specify the x coordinate of the upper left corner of the copy source
srcY : Integer, specify the y coordinate of the upper left corner of the copy source
width : Integer, specify the width of the copy
height : Integer, specify the height of the copy
angle : Number, specify the angle of rotation

filter

Apply the filter filterType to the image, and pass in the required parameters according to the filter type

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5Image.filter(Integer filterType,
    Number arg1 = 0,
    Number arg2 = 0,
    Number arg3 = 0,
    Number arg4 = 0) async;

Call parameters:

filterType : Integer, filter type
arg1 : Number, required parameters for the filter: SMOOTH smoothing level, BRIGHTNESS brightness level, CONTRAST contrast level, COLORIZE red score
arg2 : Number, the required parameters of the filter: the green score of COLORIZE
arg3 : Number, the required parameters of the filter: the blue score of COLORIZE
arg4 : Number, the required parameters of the filter: the alpha score of the transparency of COLORIZE

The parameter filterType can be the following values:

MEAN_REMOVAL , use the average removal method to achieve the contour effect
EDGEDETECT , use edge detection to highlight the edges of the image
EMBOSS , make the image embossed
SELECTIVE_BLUR , blur the image
GAUSSIAN_BLUR , blur the image with Gaussian algorithm
NEGATE , invert all colors in the image
GRAYSCALE , convert the image to grayscale
SMOOTH , make the image smoother, use arg1 to set the smoothness level
BRIGHTNESS , change the brightness of the image, use arg1 to set the brightness level, the value range is -255~255
CONTRAST , change the contrast of the image, use arg1 to set the contrast level, the value range is 0~100
COLORIZE , change the hue of the image, use arg1, arg2, and arg3 to specify the red, blue, and green scores respectively. The range of each color is 0~255, arg4 is transparency, and the return value is 0~127

affine

According to the given matrix, affine the current image

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Image Image.affine(Array affine,
    Integer x = -1,
    Integer y = -1,
    Integer width = -1,
    Integer height = -1) async;

Call parameters:

affine : Array, affine matrix, composed of 6 double numbers
x : Integer, the x coordinate of the origin of the optional clipping area
y : Integer, the y coordinate of the origin of the optional clipping region
width : Integer, optional width clipping area
height : Integer, the height optional clipping area

Return result:

Image , returns the affine image

The parameter affine is an array:

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3affine = [a0, a1, b0, b1, a2, b2];
x ' = a0x + a1y + a2;
y ' = b0x + b1y + b2;

gaussianBlur

Gaussian blur processing on the current image

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Image.gaussianBlur(Integer radius) async;

Call parameters:

radius : Integer, blur radius

toString

Returns the string representation of the object, generally returns "[Native Object]", the object can be re-implemented according to its own characteristics

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String Image.toString();

Return result:

String , returns the string representation of the object

toJSON

Returns the JSON format representation of the object, generally returns a collection of readable attributes defined by the object

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Value Image.toJSON(String key = "");

Call parameters:

key : String, unused

Return result:

Value , returns a value containing JSON serializable

Development Guide

Basic module

Built-in objects

Community module

Object Image

Inheritance

Member attributes

width

height

format

type

colorsTotal

transparent

progressive

alphaBlending

Member function

getData

save

colorAllocate

colorAllocateAlpha

colorClosest

colorClosestHWB

colorClosestAlpha

colorExact

colorExactAlpha

colorResolve

colorResolveAlpha

colorDeallocate

clip

getPixel

getTrueColorPixel

setPixel

setThickness

line

rectangle

filledRectangle

polygon

openPolygon

filledPolygon

ellipse

filledEllipse

arc

filledArc

fill

fillToBorder

colorReplace

clone

resample

crop

flip

rotate

convert

copy

copyMerge

copyMergeGray

copyResized

copyResampled

copyRotated

filter

affine

gaussianBlur

toString

toJSON