42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
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#include "stdafx.h"
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#include "imageprocess.h"
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vector<uchar> histogram_bit8(uchar* data, int rows, int cols)
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{
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vector<int> hist_sum(static_cast<uint>(cols));
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vector<uchar> hist(static_cast<uint>(cols));
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for (int x = 0; x < cols; ++x)
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{
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for (int y = 0; y < rows; ++y)
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{
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hist_sum[static_cast<uint>(x)] += data[static_cast<uint>(y * cols + x)];
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}
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hist[static_cast<uint>(x)] = static_cast<uchar>(hist_sum[static_cast<uint>(x)] / rows);
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}
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return hist;
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}
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void histogram_bit32(uchar* data, int rows, int cols, vector<uchar>& r, vector<uchar>& g, vector<uchar>& b)
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{
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uint total = static_cast<uint>(rows * cols);
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uchar* buffer_r = new uchar[total];
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uchar* buffer_g = new uchar[total];
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uchar* buffer_b = new uchar[total];
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for (uint i = 0; i < total; ++i)
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{
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buffer_r[i] = data[i * 3 + 0];
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buffer_g[i] = data[i * 3 + 1];
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buffer_b[i] = data[i * 3 + 2];
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}
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r = histogram_bit8(buffer_r, rows, cols);
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g = histogram_bit8(buffer_g, rows, cols);
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b = histogram_bit8(buffer_b, rows, cols);
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delete[] buffer_r;
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delete[] buffer_g;
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delete[] buffer_b;
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}
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