39 lines
1.0 KiB
C++
39 lines
1.0 KiB
C++
#include "labimage.h"
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#include <memory.h>
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namespace rtengine {
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LabImage::LabImage (int w, int h) : fromImage(false), W(w), H(h) {
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allocLab(w,h);
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}
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LabImage::~LabImage () {
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deleteLab();
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}
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void LabImage::CopyFrom(LabImage *Img){
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memcpy(data, Img->data, W*H*3*sizeof(float));
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}
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void LabImage::getPipetteData (float &v1, float &v2, float &v3, int posX, int posY, int squareSize) {
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float accumulator_L = 0.f;
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float accumulator_a = 0.f;
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float accumulator_b = 0.f;
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unsigned long int n = 0;
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int halfSquare = squareSize/2;
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for (int iy=posY-halfSquare; iy<posY-halfSquare+squareSize; ++iy) {
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for (int ix=posX-halfSquare; ix<posX-halfSquare+squareSize; ++ix) {
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if (ix>=0 && iy>=0 && ix<W && iy<H) {
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accumulator_L += L[iy][ix];
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accumulator_a += a[iy][ix];
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accumulator_b += b[iy][ix];
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++n;
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}
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}
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}
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v1 = n ? accumulator_L/float(n) : 0.f;
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v2 = n ? accumulator_a/float(n) : 0.f;
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v3 = n ? accumulator_b/float(n) : 0.f;
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}
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}
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