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Surma
2021-02-22 18:05:26 +00:00
parent 659d2b8277
commit a783de618d
2 changed files with 10 additions and 16 deletions
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14
codecs/visdif/visdif.cpp
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@@ -7,7 +7,7 @@ using namespace butteraugli;
// Turns an interleaved RGBA buffer into 4 planes for each color channel
void planarize(std::vector<ImageF>& img,
const char* rgba,
const uint8_t* rgba,
int width,
int height,
float gamma = 2.2) {
@@ -22,10 +22,10 @@ void planarize(std::vector<ImageF>& img,
float* const row_b = img[2].Row(y);
float* const row_a = img[3].Row(y);
for (int x = 0; x < width; x++) {
row_r[x] = 255.0 * pow((uint8_t)rgba[(y * width + x) * 4 + 0] / 255.0, gamma);
row_g[x] = 255.0 * pow((uint8_t)rgba[(y * width + x) * 4 + 1] / 255.0, gamma);
row_b[x] = 255.0 * pow((uint8_t)rgba[(y * width + x) * 4 + 2] / 255.0, gamma);
row_a[x] = 255.0 * pow((uint8_t)rgba[(y * width + x) * 4 + 3] / 255.0, gamma);
row_r[x] = 255.0 * pow(rgba[(y * width + x) * 4 + 0] / 255.0, gamma);
row_g[x] = 255.0 * pow(rgba[(y * width + x) * 4 + 1] / 255.0, gamma);
row_b[x] = 255.0 * pow(rgba[(y * width + x) * 4 + 2] / 255.0, gamma);
row_a[x] = 255.0 * pow(rgba[(y * width + x) * 4 + 3] / 255.0, gamma);
}
}
}
@@ -37,14 +37,14 @@ class VisDiff {
public:
VisDiff(std::string ref_img, int width, int height) {
planarize(this->ref_img, ref_img.c_str(), width, height);
planarize(this->ref_img, (uint8_t*)ref_img.c_str(), width, height);
this->width = width;
this->height = height;
}
double distance(std::string other_img) {
std::vector<ImageF> img;
planarize(img, other_img.c_str(), width, height);
planarize(img, (uint8_t*)other_img.c_str(), width, height);
ImageF diffmap;
double diffvalue;