ImageGear for C and C++ on Windows v21.0 - Updated
API Reference Guide / Core Component API Reference / Core Component Functions Reference / Image Processing Functions / IG_IP_remove_redeye
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    IG_IP_remove_redeye
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    This function processes the given image using a redeye removal algorithm.

    Declaration:

     
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    AT_ERRCOUNT ACCUAPI IG_IP_remove_redeye(
            HIGEAR hIGear, 
            AT_DOUBLE dblThreshold,
            AT_DOUBLE dblBrightness,
            LPAT_RECT lpRect
    ); 
    

    Arguments:

    Name Type Description
    hIGear HIGEAR Image to process.
    dblThreshold AT_DOUBLE A value in the range 0.5..2 that specifies a part of the red component in the pixel color.
    dblBrightness AT_DOUBLE Scaling factor for brightness of the pixel after processing. The range is -1...1.
    lpRect LPAT_RECT Rectangular area to apply the effect to, or NULL for whole image.

    Return Value:

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

    Supported Raster Image Formats:

    RGB – 3…48 bpp;
    RGBA, RGBPA – 4..64 bpp;
    RGBEx, RGBAEx, RGBPAEx – 1…16 bpc;
    CMYK – 32 bpp.

    Remarks:

    The algorithm can be applied to the entire image, to a rectangular ROI defined by the lpRect parameter, or to a non-rectangular ROI set using the IG_IP_NR_ROI_mask_associate function. The function IG_IP_detect_redeye_area can assist in defining a non-rectanular ROI suitable for use with this function.