Hi Erhy, please find a code snipplet for extrascting an area of interest from an image.
Way 1: mask is extracted from original image and stored as a new variable. original_img = rand(100,100).*256; extract_img = original_img (25:74,25:74); Way 2: make a copy of the original image // to keep the original values...just in case directly process the copy original_img = rand(100,100).*256; filtered_img = original_img;filtered_img(25:75,25:74) = 0; Matplot(filtered_img) Of course this example is more grayscale related, but you can do this as well for RGB images. original_img_R = rand(100,100).*256;original_img_G = rand(100,100).*256;original_img_B = rand(100,100).*256; original_RGB(:,:,1) = original_img_R;original_RGB(:,:,2) = original_img_G;original_RGB(:,:,3) = original_img_B; filtered_RGB = original_RGB;filtered_RGB(25:75,25:75,:)=0; ShowColorImage(filtered_RGB,''); // Note: ShowColorImage is part of the IPD toolbox. HTH Philipp 2016-12-10 21:34 GMT+01:00 Erhy <erhard.glueck.aust...@gmail.com>: > Hello! > My interest ist to image processing. > Are there tools to mask an area of an image, > that a filter is only applied for the masked area? > > Thank you for tips > Erhy > > > > -- > View this message in context: http://mailinglists.scilab. > org/image-area-mask-for-applying-for-filter-tp4035216.html > Sent from the Scilab users - Mailing Lists Archives mailing list archive > at Nabble.com. > _______________________________________________ > users mailing list > users@lists.scilab.org > http://lists.scilab.org/mailman/listinfo/users > -- In Kanada is' ka' na' da. Sonst wär' Kanada Jemanda. There we have the salad.
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