54 lines
1005 B
C
54 lines
1005 B
C
#include "quickdebayer.h"
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// Fast but bad debayer method that scales and rotates by skipping source pixels and
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// doesn't interpolate any values at all
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int
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quick_debayer_bggr8(const uint8_t *source, uint8_t *destination, int width, int height, int skip)
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{
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int byteskip = 2 * skip;
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int input_size = width * height;
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int i;
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int j=0;
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int row_left = width;
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int clipped = 0;
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int above80 = 0;
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int above50 = 0;
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// B G
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// G R
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for(i=0;i<input_size;) {
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destination[j++] = source[i+width+1];
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destination[j++] = source[i+1];
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destination[j++] = source[i];
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if(source[i+1] > 250) {
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clipped++;
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}
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if(source[i+1] > 205) {
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above80++;
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}
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if(source[i+1] > 128) {
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above50++;
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}
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i = i + byteskip;
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row_left = row_left - byteskip;
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if(row_left <= 0){
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row_left = width;
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i = i+width;
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i = i + (width * 2 * (skip-1));
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}
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}
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if(clipped > 300) {
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return -10;
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}
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if(clipped > 10) {
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return -1;
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}
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if(above50 < 10) {
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return 10;
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}
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if(above80 < 10) {
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return 1;
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}
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return 0;
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}
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