fix conv

pgm.c

@@ -303,9 +303,9 @@ pgm_error pgm_conv(pgm *conv, const pgm *const orig,const matrix *const kernel,
     norm = (norm == 0) ? 1 : norm;
 
     //Itère sur pixels n et m
-    for (int n = 0; n < orig->pixels.m; n++)
+    for (int n = 0; n < orig->pixels.n; n++)
     {
-        for (int m = 0; m < orig->pixels.n; m++)
+        for (int m = 0; m < orig->pixels.m; m++)
         {
             //Pour chaque element de orig pixels :