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Add support to recomb operation for 4x4 matrices

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This commit is contained in:
Denice
2024-07-02 17:06:26 +07:00
committed by Lovell Fuller
parent eab7dc1b49
commit 60c5c5083d
14 changed files with 74 additions and 34 deletions
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26
src/operations.cc
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@@ -183,19 +183,21 @@ namespace sharp {
* Recomb with a Matrix of the given bands/channel size.
* Eg. RGB will be a 3x3 matrix.
*/
VImage Recomb(VImage image, std::unique_ptr<double[]> const &matrix) {
double *m = matrix.get();
VImage Recomb(VImage image, std::vector<double> const& matrix) {
double* m = const_cast<double*>(matrix.data());
image = image.colourspace(VIPS_INTERPRETATION_sRGB);
return image
.recomb(image.bands() == 3
? VImage::new_from_memory(
m, 9 * sizeof(double), 3, 3, 1, VIPS_FORMAT_DOUBLE
)
: VImage::new_matrixv(4, 4,
m[0], m[1], m[2], 0.0,
m[3], m[4], m[5], 0.0,
m[6], m[7], m[8], 0.0,
0.0, 0.0, 0.0, 1.0));
if (matrix.size() == 9) {
return image
.recomb(image.bands() == 3
? VImage::new_matrix(3, 3, m, 9)
: VImage::new_matrixv(4, 4,
m[0], m[1], m[2], 0.0,
m[3], m[4], m[5], 0.0,
m[6], m[7], m[8], 0.0,
0.0, 0.0, 0.0, 1.0));
} else {
return image.recomb(VImage::new_matrix(4, 4, m, 16));
}
}
VImage Modulate(VImage image, double const brightness, double const saturation,