Special Effects [Image Processing]

Collaboration diagram for Special Effects:

Functions
void	imProcessPixelate (const imImage *src_image, imImage *dst_image, int box_size)
void	imProcessPosterize (const imImage *src_image, imImage *dst_image, int level)
void	imProcessBinaryMask (const imImage *src_image, imImage *dst_image, const imImage *mask_image)

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Detailed Description

Operations to change image appearance.

See im_process_pnt.h

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Function Documentation

void imProcessPixelate	(	const imImage *	src_image,
		imImage *	dst_image,
		int	box_size
	)

Generates a zoom in effect averaging colors inside a square region.
Operates only on IM_BYTE images.

im.ProcessPixelate(src_image: imImage, dst_image: imImage, box_size: number) [in Lua 5] 

im.ProcessPixelateNew(src_image: imImage, box_size: number) -> new_image: imImage [in Lua 5] 

void imProcessPosterize	(	const imImage *	src_image,
		imImage *	dst_image,
		int	level
	)

A simple Posterize effect. It reduces the number of colors in the image eliminating less significant bit planes. Can have 1 to 7 levels. See imProcessBitMask.
Images must have data type IM_BYTE.

im.ProcessPosterize(src_image: imImage, dst_image: imImage, level: number) [in Lua 5] 

im.ProcessPosterizeNew(src_image: imImage, level: number) -> new_image: imImage [in Lua 5] 

void imProcessBinaryMask	(	const imImage *	src_image,
		imImage *	dst_image,
		const imImage *	mask_image
	)

Applies a binary mask to an image. The mask must be a IM_BINARY image. Where the mask is 1, the original image is preserved. Where it is 0, the value is replaced by the minimum (0 for imbyte images).
Can be done in-place.

im.ProcessBinaryMask(src_image: imImage, dst_image, mask_image: imImage) [in Lua 5] 

im.ProcessBinaryMaskNew(src_image, mask_image: imImage) -> new_image: imImage [in Lua 5]