46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
#include "labimage.h"
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#include <memory.h>
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namespace rtengine
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{
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LabImage::LabImage (int w, int h) : fromImage(false), W(w), H(h)
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{
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allocLab(w, h);
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}
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LabImage::~LabImage ()
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{
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deleteLab();
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}
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void LabImage::CopyFrom(LabImage *Img)
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{
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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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{
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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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