These functions allow you to copy, scale, rotate, adjust contrast, gamma and brightness, and dither or color reduce images. They're divided into two groups: those that alter the original image, and those that produce new images which reflect the desired effects.

 

Functions which alter the original image

 

ImgBrightness Adjusts the brightness level of an image.

 

ImgContrast Adjusts the color contrast of an image.

 

ImgFilter and ImgFilterLow both apply convolution filters to an image.

 

ImgGamma Adjusts the gamma point of an image.

 

ImgInvert Invert the colors in an image.

 

ImgMirror Mirrors an image horizontally, vertically, or in both directions.

 

 

Functions which return a new image

 

ImgCopy Returns a copy of the original image, scaled to any desired size.

 

ImgRotate Returns a rotated copy of the original image.

 

ImgReduceColors returns  a color reduced image optionally dithered.

 

ImgReduceColorsPal r eturns an image which has been color reduced to the specified palette.

 

ImgCaptureScreen captures the screen.

 

 

 

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