stephenseo/blue_noise_generation
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

Use 0-255 range for pgm output

Browse source
This commit is contained in:
Stephen Seo 2021-01-23 12:21:02 +09:00
parent 850a5d22a9
commit 50dfa98f51
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
src/blue_noise.hpp
View file

@ -207,12 +207,12 @@ namespace internal {
printf("Writing to %s, min is %.3f, max is %.3f\n", filename, filter[min], filter[max]); printf("Writing to %s, min is %.3f, max is %.3f\n", filename, filter[min], filter[max]);
FILE *filter_image = fopen(filename, "w"); FILE *filter_image = fopen(filename, "w");
fprintf(filter_image, "P2\n%d %d\n65535\n", width, (int)filter.size() / width); fprintf(filter_image, "P2\n%d %d\n255\n", width, (int)filter.size() / width);
for(std::vector<float>::size_type i = 0; i < filter.size(); ++i) { for(std::vector<float>::size_type i = 0; i < filter.size(); ++i) {
fprintf(filter_image, "%d ", fprintf(filter_image, "%d ",
(int)(((filter[i] - filter[min]) (int)(((filter[i] - filter[min])
/ (filter[max] - filter[min])) / (filter[max] - filter[min]))
* 65535.0f)); * 255.0f));
if((i + 1) % width == 0) { if((i + 1) % width == 0) {
fputc('\n', filter_image); fputc('\n', filter_image);
} }