#ifndef SRC_OPERATIONS_H_ #define SRC_OPERATIONS_H_ #include using vips::VImage; namespace sharp { /* Composite images `src` and `dst` with premultiplied alpha channel and output image with premultiplied alpha. */ VImage Composite(VImage src, VImage dst); /* * Stretch luminance to cover full dynamic range. */ VImage Normalize(VImage image); /* * Gaussian blur. Use sigma of -1 for fast blur. */ VImage Blur(VImage image, double const sigma); /* * Sharpen flat and jagged areas. Use radius of -1 for fast sharpen. */ VImage Sharpen(VImage image, int const radius, double const flat, double const jagged); } // namespace sharp #endif // SRC_OPERATIONS_H_