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Add multiplier to make the differences more noticable

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This commit is contained in:
Pavel Krajcevski 2015-12-20 17:42:22 -05:00
parent f1151ff767
commit 841a1b0c72
3 changed files with 14 additions and 4 deletions
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2
Base/include/FasTC/Image.h
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@ -97,7 +97,7 @@ namespace FasTC {
double ComputePSNR(Image<PixelType> *other);
double ComputeSSIM(Image<PixelType> *other);
Image<PixelType> Diff(Image<PixelType> *other);
Image<PixelType> Diff(Image<PixelType> *other, float mult);
double ComputeEntropy();
double ComputeMeanLocalEntropy();

3
Base/src/Image.cpp
View file

@ -199,7 +199,7 @@ const PixelType & Image<PixelType>::operator()(uint32 i, uint32 j) const {
}
template<typename PixelType>
Image<PixelType> Image<PixelType>::Diff(Image<PixelType> *other) {
Image<PixelType> Image<PixelType>::Diff(Image<PixelType> *other, float mult) {
if (!other) {
std::cerr << "Image::Diff - ERROR: other == null" << std::endl;
assert(false);
@ -219,6 +219,7 @@ Image<PixelType> Image<PixelType>::Diff(Image<PixelType> *other) {
for (int j = 0; j < GetHeight(); ++j) {
for (int i = 0; i < GetWidth(); ++i) {
result(i, j) = PixelAbs((*this)(i, j) - (*other)(i, j));
result(i, j) *= mult;
result(i, j).MakeOpaque();
}
}

13
CLTool/src/compare.cpp
View file

@ -80,15 +80,24 @@ void gen_random(char *s, const int len) {
}
int main(int argc, char **argv) {
if(argc != 3 && argc != 4) {
if(argc < 3 || argc > 5) {
PrintUsageAndExit();
}
bool diff_images = false;
float diff_multiplier = 1.0;
int arg = 1;
if (strncmp(argv[arg], "-d", 2) == 0) {
diff_images = true;
arg++;
if (argc == 5) {
diff_multiplier = static_cast<float>(atoi(argv[arg]));
if (diff_multiplier < 0) {
PrintUsageAndExit();
}
arg++;
}
}
ImageFile img1f (argv[arg]);
@ -109,7 +118,7 @@ int main(int argc, char **argv) {
FasTC::Image<> &img2 = *img2f.GetImage();
if (diff_images) {
FasTC::Image<> diff = img1.Diff(&img2);
FasTC::Image<> diff = img1.Diff(&img2, diff_multiplier);
char fname_buf [5 + 16 + 4]; // "diff-" + hash + ".png"
strncat(fname_buf, "diff-", 5);