save resulted image of fill

Hi guys,

I need your help in solving the following problem:

How can i save the resulted image of fill?

Thanks in advance.

Answer 1

[Walter Roberson]

http://www.mathworks.com/help/matlab/ref/getframe.html

http://blogs.mathworks.com/pick/2012/08/10/grab-a-screen-shot-from-within-matlab/

also, saveas() and print()

More generally, if you are just working with ordinary fill then you can take the coordinates and use poly2mask() to determine array locations that would be affected, and then you can scribble in those locations:

YourImage = zeros(m, n, 3, 'uint8');
...
RedValue = 0; GreenValue = 255; BlueValue = 255;  %for example yellow

mask = poly2mask(x,y,m,n);

%now store the color at the masked locations
idx = find(mask);
YourImage(idx + 0*(m*n)) = RedValue;
YourImage(idx + 1*(m*n)) = GreenValue;
YourImage(idx + 2*(m*n)) = BlueValue;

[jack]

each of these (except poly2mask() since i don't have matlab 2015) change the resolution of images meaning that i don't get the expected result!!!!

[Walter Roberson]

poly2mask() was introduced before R2006a, but it is part of the Image Processing Toolkit.

If you are concerned about resolution in ways that the saveas() and print() resolution parameters cannot overcome, then you need to use savefig() or hgsave() to save as a figure. Possibly you overlooked the resolution documentation in print()? http://www.mathworks.com/help/matlab/ref/print.html#inputarg_resolution