ImageGear for C and C++ on Linux v20.0 - Updated
API Reference Guide > Core Component API Reference > Core Component Functions Reference > Image Processing Functions > IG_IP_color_count_get

This function counts the number of unique colors in the specified rectangular area of the image.


Copy Code
AT_ERRCOUNT ACCUAPI IG_IP_color_count_get(
        HIGEAR hIGear, 
        LPAT_RECT lpRect, 
        LPAT_INT lpCount


Name Type Description
hIGear HIGEAR Image whose count colors are to be counted.
lpRect LPAT_RECT Rectangle in which to count colors (NULL for the whole image).
lpCount LPAT_INT Pointer to AT_INT to receive number of colors.

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++.

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