MATLAB: I extract the ROI as separate image? in other words, i want to extract the polygon selection as separate image?? My Roi is in the link and highlighed and i want that ROI as separate image

Image Processing Toolboxroi

i extract the ROI as separate image?

Best Answer

You have to get the bounding box from your polygon using max() and min(). Then simply use imcrop() to get a cropped image, followed by imwrite() if you want to save it to disk.

Related Solutions

MATLAB: Polygon ROI extraction from an image

Use functions like imfreehand(), roipoly(), roipolyold(), poly2mask(), rbbox(), imrect(), and/or imcrop().

MATLAB: Can I extract the ROIs into separate images for classification

Try something like this: (assume you've got your ROIs as seperate matrices, I_ROI_1, I_ROI_2, etc. )

I{1} = I_ROI_1;
I{2} = I_ROI_2;
for i = 1:2
    imwrite(I{i}, ['ROI_', num2str(i), '_', datestr(now,'mm-dd HH-MM'),'.jpg']);
end

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Related Solutions

MATLAB: Polygon ROI extraction from an image

MATLAB: Can I extract the ROIs into separate images for classification

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