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CImage:RectToTable The RectToTable method copies the pixels from a rectangular region of a CImage into a 2-dimensional array. If the CImage has a numeric pixel type (e.g., "ushort", "float", etc.) then the array has numeric values. If the CImage has an rgb pixel type, then the array has rgb strings as values, for example "255,0,0" for pure red. See Pixel Types. Note that this method does not work with a 1-dimensional CImage. The inverse operation, pasting a rectangle region into a CImage, is done using the TableToRect method. Syntaxlua_table = CImage:RectToTable(nColMin, nColMax, nRowMin, nRowMax)
RemarksThe parameter order follows the standard order for describing image sections: [nMinCol:nMaxCol, nMinRow:nMaxRow]. Assuming the image has nCols total columns and nRows total rows, the specified limits are automatically chopped at the limits [1:nCols, 1:nRows]. ExamplesThe following script copies a 2-dimensional image rectangle [30:49,120:159] into a 2-dimensional array. The array size is (49-30+1) * (159-120+1) = 20*40 = 800 elements:
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