htpp

commit 4514baace016476895d4cecea332b79d100e995f
parent 47f359cd275251bc097f1703c91f7da324fc767c
Author: Vincent Forest <vincent.forest@meso-star.com>
Date:   Thu,  5 Dec 2019 16:43:58 +0100

Fix comments and man page

Diffstat:
M
doc/htpp.1.txt
 | 
2
+-
M
src/htpp.c
 | 
4
++--

2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/doc/htpp.1.txt b/doc/htpp.1.txt
@@ -35,7 +35,7 @@ standard input.
 *htpp* tone maps the high dynamic range colors of the _input_ image with the
 following filmic tone mapping operator [2]:
 
-    out-color = f(in-color) / white-scale * exposure
+    out-color = f(in-color) / f(white-scale) * exposure
 
 with:
 
diff --git a/src/htpp.c b/src/htpp.c
@@ -568,10 +568,10 @@ main(int argc, char** argv)
     double* row = (double*)(img.pixels + img.pitch*y);
     double* pixel = row + x*3;
 
-    filmic_tone_mapping(pixel, args.exposure, Ymax); /* Tone map the RGB pixel */
+    filmic_tone_mapping(pixel, args.exposure, Ymax); /* Tone map the XYZ pixel */
     if(args.pixdata == PIXEL_RADIANCE) {
       XYZ_to_sRGB(pixel); /* Convert in RGB color space */
-      sRGB_gamma_correct(pixel); /* Convert in sRGB color space (i.e. gamma correction) */
+      sRGB_gamma_correct(pixel); /* Gamma correction */
     }
   }