OwnedImage.cpp

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#include "EdgeDetection/OwnedImage.h"
#include "EdgeDetection/MemoryImage.h"

namespace EdgeDetection
{
        Image* OwnedImage::GetRegion(int left, int right, int top, int bottom)
        {
                if (left < 0 || left >= GetWidth()) throw "The parameter 'left' was out of range.";
                if (right < 0 || right >= GetWidth()) throw "The parameter 'right' was out of range.";
                if (top < 0 || top >= GetHeight()) throw "The parameter 'top' was out of range.";
                if (bottom < 0 || bottom >= GetHeight()) throw "The parameter 'bottom' was out of range.";
                if (right - left < 0) throw "The parameters 'left' and 'right' were out of range.";
                if (bottom - top < 0) throw "The parameters 'top' and 'bottom' were out of range.";

                return new GrayDoubleMemoryImage(right - left, bottom - top, values + left * 1 + top * GetWidth(), GetWidth());
        }
};