Reference for Processing (BETA) version 0135+. If you have a previous version, use the reference included with your software. If you see any errors or have any comments, let us know.
Class | PImage |
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Name | blend() |
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Examples | ![]() PImage img = loadImage("rockies.jpg"); PImage img2 = loadImage("degaul.jpg"); img.blend(img2, 0, 0, 33, 100, 67, 0, 33, 100, ADD); image(img, 0, 0); image(img2, 0, 0); ![]() PImage img = loadImage("rockies.jpg"); PImage img2 = loadImage("degaul.jpg"); img.blend(img2, 0, 0, 33, 100, 67, 0, 33, 100, SUBTRACT); image(img, 0, 0); image(img2, 0, 0); ![]() PImage img = loadImage("rockies.jpg"); PImage img2 = loadImage("degaul.jpg"); img.blend(img2, 0, 0, 33, 100, 67, 0, 33, 100, DARKEST); image(img, 0, 0); image(img2, 0, 0); ![]() PImage img = loadImage("rockies.jpg"); PImage img2 = loadImage("degaul.jpg"); img.blend(img2, 0, 0, 33, 100, 67, 0, 33, 100, LIGHTEST); image(img, 0, 0); image(img2, 0, 0); |
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Description | Blends a region of pixels into the image specified by the img parameter. These copies utilize full alpha channel support and a choice of the following modes to blend the colors of source pixels (A) with the ones of pixels in the destination image (B): BLEND - linear interpolation of colors: C = A*factor + B ADD - additive blending with white clip: C = min(A*factor + B, 255) SUBTRACT - subtractive blending with black clip: C = max(B - A*factor, 0) DARKEST - only the darkest color succeeds: C = min(A*factor, B) LIGHTEST - only the lightest color succeeds: C = max(A*factor, B) All modes use the alpha information (highest byte) of source image pixels as the blending factor. If the source and destination regions are different sizes, the image will be automatically resized to match the destination size. If the srcImg parameter is not used, the display window is used as the source image. The imageMode() function changes the way the parameters work. For example, a call to imageMode(CORNERS) will change the width and height related parameters to define the x and y values of the opposite corner of the image. |
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Syntax | img.blend(x, y, width, height, dx, dy, dwidth, dheight, MODE) img.blend(srcImg, x, y, width, height, dx, dy, dwidth, dheight, MODE) |
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Parameters |
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Usage | Web & Application | ||||||||||||||||||||||
Related | alpha() copy() |