Stéphane, thank you, I can work with that.
Regards, Philipp Am Mi., 15. Juli 2020 um 22:14 Uhr schrieb Stéphane Mottelet < [email protected]>: > Another possibility: compute the connected components of the green plane > bitmap image and keep only the largest one. You can use imlabel then > imblobprop (in IPCV): > > im=im2bw(imread("G.jpg"),0.5); // I took a screenshot of your G plane image > > clf > subplot(1,2,1) > imshow(im) > > [im_labeled,n] = imlabel(im); > [a,bb,c] = imblobprop(im_labeled); > [as,k]=gsort(a); > for i=2:n > im(im_labeled==k(i))=0; > end > > subplot(1,2,2) > imshow(im) > > S. > Le 15/07/2020 à 20:39, P M a écrit : > > Stéphane, > > Thanks for the hint. > > This is nice for dots being completely surrounded by the green area. > > In general there might be cases, where the dots are part of the red and > part of the green area. > > The result would than be like this: > > [image: grafik.png] > > Appreciate your input. > Philipp > > Am Mi., 15. Juli 2020 um 18:21 Uhr schrieb Stéphane Mottelet < > [email protected]>: > >> Hello, >> >> Maybe this is not relevant, but if the green region is garanteed to be >> always simply connected, you just have to fill holes in your absdiff(G,B) >> image (imfill function in IPCV). >> >> S. >> >> >> Le 15/07/2020 à 17:58, P M a écrit : >> >> Dear Scilab community, >> >> Thanks to Antoine's functions I am able to read tif-files as M x N x >> Channel - matrix. >> >> Px values are: >> >> red => 255, 0, 0 >> green => 0, 255, 0 >> black => 0, 0, 0 >> white => 255, 255, 255 >> >> Now: I want to only keep the green pixel values. >> This can be done due to: G = img(:,:,2); >> >> However, this plane does also include the white pixels, since white has a >> pixel value of 255 in the green plane. >> This is Ok, as long as the white pixels are surrounded by the green area. >> >> However there are also white pixels in the red and black area. >> These white pixels should be set to 0. >> >> I started to work with differential images , but somehow I can not get >> around the problem. >> >> Please find below an example of my output. >> >> upper line: RGB; R-plane; G-plane ; B-plane >> >> As you can see, the G-plane contains white pixel (2 dots), which are >> within the red-area >> The desired output would be to have the G-plane without the 2 dots. >> >> Any Idea? >> >> Best Regards, >> Philipp >> >> >> >> [image: grafik.png] >> >> _______________________________________________ >> users mailing >> [email protected]https://antispam.utc.fr/proxy/1/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/lists.scilab.org/mailman/listinfo/users >> >> <https://antispam.utc.fr/proxy/2/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/antispam.utc.fr/proxy/1/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/lists.scilab.org/mailman/listinfo/users> >> >> -- >> Stéphane Mottelet >> Ingénieur de recherche >> EA 4297 Transformations Intégrées de la Matière Renouvelable >> Département Génie des Procédés Industriels >> Sorbonne Universités - Université de Technologie de Compiègne >> CS 60319, 60203 Compiègne cedex >> Tel : +33(0)344234688http://www.utc.fr/~mottelet >> <https://antispam.utc.fr/proxy/1/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/www.utc.fr/~mottelet> >> >> _______________________________________________ >> users mailing list >> [email protected] >> http://lists.scilab.org/mailman/listinfo/users >> <https://antispam.utc.fr/proxy/1/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/lists.scilab.org/mailman/listinfo/users> >> > > _______________________________________________ > users mailing > [email protected]https://antispam.utc.fr/proxy/1/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/lists.scilab.org/mailman/listinfo/users > > -- > Stéphane Mottelet > Ingénieur de recherche > EA 4297 Transformations Intégrées de la Matière Renouvelable > Département Génie des Procédés Industriels > Sorbonne Universités - Université de Technologie de Compiègne > CS 60319, 60203 Compiègne cedex > Tel : +33(0)344234688http://www.utc.fr/~mottelet > > _______________________________________________ > users mailing list > [email protected] > http://lists.scilab.org/mailman/listinfo/users >
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