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Use Transpose from geometry.

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This commit is contained in:
homm 2014-10-25 04:27:46 +04:00
parent 316ac5ad57
commit 57cd15f9b1
1 changed files with 2 additions and 38 deletions
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40
libImaging/BoxBlur.c
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@ -230,42 +230,6 @@ HorizontalBoxBlur(Imaging im, Imaging imOut, float floatRadius)
return imOut; return imOut;
} }
void
TransposeImage(Imaging im, Imaging imOut)
{
int x, y, xx, yy, xxsize, yysize;
int size = 64;
if (im->image8)
{
for (y = 0; y < im->ysize; y += size) {
for (x = 0; x < im->xsize; x += size) {
yysize = MIN(size, im->ysize - y);
xxsize = MIN(size, im->xsize - x);
for (yy = 0; yy < yysize; yy++) {
for (xx = 0; xx < xxsize; xx++) {
imOut->image8[x + xx][y + yy] = im->image8[y + yy][x + xx];
}
}
}
}
}
else
{
for (y = 0; y < im->ysize; y += size) {
for (x = 0; x < im->xsize; x += size) {
yysize = MIN(size, im->ysize - y);
xxsize = MIN(size, im->xsize - x);
for (yy = 0; yy < yysize; yy++) {
for (xx = 0; xx < xxsize; xx++) {
imOut->image32[x + xx][y + yy] = im->image32[y + yy][x + xx];
}
}
}
}
}
}
Imaging Imaging
ImagingBoxBlur(Imaging im, Imaging imOut, float radius, int n) ImagingBoxBlur(Imaging im, Imaging imOut, float radius, int n)
@ -307,7 +271,7 @@ ImagingBoxBlur(Imaging im, Imaging imOut, float radius, int n)
for (i = 1; i < n; i ++) { for (i = 1; i < n; i ++) {
HorizontalBoxBlur(imOut, imOut, radius); HorizontalBoxBlur(imOut, imOut, radius);
} }
TransposeImage(imOut, temp); ImagingTranspose(temp, imOut);
/* Blur transposed result from previout step in same direction. /* Blur transposed result from previout step in same direction.
Reseult will be transposed again. We'll get original image Reseult will be transposed again. We'll get original image
@ -315,7 +279,7 @@ ImagingBoxBlur(Imaging im, Imaging imOut, float radius, int n)
for (i = 0; i < n; i ++) { for (i = 0; i < n; i ++) {
HorizontalBoxBlur(temp, temp, radius); HorizontalBoxBlur(temp, temp, radius);
} }
TransposeImage(temp, imOut); ImagingTranspose(imOut, temp);
ImagingDelete(temp); ImagingDelete(temp);