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核外图像直方图的计算

核外图像直方图的计算

使用核外技术计算大型图像的图像直方图.

Wolfram Language code: counts = ConstantArray[0, 256];
Wolfram Language code: f[x_] := Block[{b = Clip[Floor[255 * x + .5], {0, 255}]}, counts[[b + 1]]++];
Wolfram Language code: ImageFileScan[f, ExampleData[{"TestImage", "Man"}, "FilePath"]];
Wolfram Language code: ListLinePlot[counts, InterpolationOrder -> 0, Filling -> Bottom, ImageSize -> Medium]