This function creates conversion engine based on the source and the result color space attributes.
Declaration:
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AT_ERRCOUNT ACCUAPI IG_colorspace_conversion_create(
enumIGColorSpaceIDs sourceSpace,
const AT_RGBQUAD* sourceSpaceAttribs,
const AT_INT* sourceChannelDepths,
AT_INT sourceChannelCount,
enumIGColorSpaceIDs resultSpace,
const AT_INT* resultChannelDepths,
AT_INT resultChannelCount,
LPCAT_COLORSPACE_CONVERSION_OPTIONS options,
HIGCSCONVERTER* hCSConverter
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Arguments:
| Name | Type | Description |
| sourceSpace | enumIGColorSpaceIDs | Color space from which to convert. |
| sourceSpaceAttribs | const AT_RGBQUAD* | Source color space attributes. |
| sourceChannelDepths | const AT_INT* | Array of channel depths for source color space. |
| sourceChannelCount | AT_INT | Number of channels in source color space. |
| resultSpace | enumIGColorSpaceIDs | Color space to which to convert. |
| resultChannelDepths | const AT_INT* | Array of channel depths in resulting color space. |
| resultChannelCount | AT_INT | Number of channels in resulting color space. |
| options | LPCAT_COLORSPACE_CONVERSION_OPTIONS | Conversion options. |
| hCSConverter | HIGCSCONVERTER* | Handle of color space converter. |
Return Value:
Returns the number of ImageGear errors that occurred during this function call. If there are no errors, the return value is IGE_SUCCESS.
Supported Raster Image Formats:
All pixel formats supported by ImageGear Professional.
Sample:
None
Example:
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/* Use the color space converter to convert an image from CMYK to 24-bit RGB, no alpha or extra channels */ AT_ERRCOUNT nErrcount; /* Number of errors on stack */ HIGCSCONVERTER hCSConv; /* Color space converter handle */ HIGEAR hImage; /* HIGEAR handle of image */ AT_INT depthsCMYK[] = { 8, 8, 8, 8 }; /* CMYK channel depths */ AT_INT depthsRGB[] = { 8, 8, 8 }; /* RGB channel depths */ nErrcount = IG_colorspace_conversion_create( IG_COLOR_SPACE_ID_CMYK, NULL, depthsCMYK, 4, IG_COLOR_SPACE_ID_RGB, depthsRGB, 3, NULL, &hCSConv); nErrcount = IG_colorspace_conversion_apply_to_image( hCSConv, hImage); nErrcount = IG_colorspace_conversion_destroy(hCSConv); |
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Remarks:
NULL is an acceptable value for resultChannelDepths. In this case the result channels will be constructed using IG_colorspace_conversion_result_channels_build() routine. Options controls the conversion flow. You may pass NULL for Options if you don't want to specify any options.
For the detailed information about AT_COLORSPACE_CONVERSION_OPTIONS structure and the whole color conversion process please refer to the section Working with Color Space Conversion Engine.