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35 lines
1.1 KiB
C++
Executable File
35 lines
1.1 KiB
C++
Executable File
#ifndef SRC_OPERATIONS_H_
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#define SRC_OPERATIONS_H_
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namespace sharp {
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/*
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Composite images `src` and `dst` with premultiplied alpha channel and output
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image with premultiplied alpha.
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*/
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int Composite(VipsObject *context, VipsImage *src, VipsImage *dst, VipsImage **out);
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/*
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* Stretch luminance to cover full dynamic range.
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*/
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int Normalize(VipsObject *context, VipsImage *image, VipsImage **out);
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/*
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* Gaussian blur. Use sigma of -1 for fast blur.
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*/
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int Blur(VipsObject *context, VipsImage *image, VipsImage **out, double sigma);
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/*
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* Sharpen flat and jagged areas. Use radius of -1 for fast sharpen.
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*/
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int Sharpen(VipsObject *context, VipsImage *image, VipsImage **out, int radius, double flat, double jagged);
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/*
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* Perform thresholding on an image. If the image is not greyscale, will convert before thresholding.
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* Pixels with a greyscale value greater-than-or-equal-to `threshold` will be pure white. All others will be pure black.
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*/
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int Threshold(VipsObject *context, VipsImage *image, VipsImage **out, int threshold);
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} // namespace sharp
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#endif // SRC_OPERATIONS_H_
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