nan outside polygon ones inside

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zawaiter 2012 年 2 月 9 日
i have the vertices and facec of a figure i want to set all area outside this boundaries to nan and save the image matrix.plz some help i am still having a problem with this issue ,i have wrote two codes one depending on what kevin explained and a second one depending on image analyst explanation,here what they recommend. in the first code i noticed some ones in one side outside the head area and some zeros in the other side inside the head area, as if the mask is shifted to one side. i guess the solution may be in the part you mentioned about getting the distance and make a thresholding but i don’t know how to do it. the second code recommended by image analyst, fit the head boundaries very well although there is a lot of zeros inside the head area. i believe i might made a little mistake here or there but i am not able to locate it and fix it.i wish you allow me to send the codes and data to you and take look at them , i will be so grateful . thanks again

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