IG_FX_solarize

The Solarize effect mimics the accidental exposure of photographic film to light, by inverting the colors of pixels whose lightness exceeds a given threshold.

Declaration:

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AT_ERRCOUNT ACCUAPI IG_FX_solarize( HIGEAR hIGear, AT_INT nThreshold );

Arguments:

Name	Type	Description
hIGear	HIGEAR	Image to which to apply the effect.
nThreshold	AT_INT	Specifies minimum intensity at which the pixels should be inverted.

Return Value:

Returns the number of ImageGear errors that occurred during this function call.

Supported Raster Image Formats:

All pixel formats supported by ImageGear for C and C++, except:
Indexed RGB – 1 bpp;
Indexed RGB with non-grayscale palette;
Grayscale – 1 bpp;
Images that have a Grayscale LUT attached to them.

Sample:

Image Processing

Remarks:

To calculate the threshold, use the following formula:

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2^bpc (i.e., 24bit RGB is 8bpc, 2^8 = 256, hence the range is 0 to 256)