Generating a mask from scratch
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Salad Box
el 3 de Oct. de 2022
Comentada: Salad Box
el 4 de Oct. de 2022
Hi
I would like to generate a simple mask image from scratch in Matlab if it is possible.
It has the following criteria:
- the size of the image needs to be 500 x 500 pixels.
- the center of the mask image needs to be a number, say 8. This area is white [255 255 255].
- the size of the number is best to be adjustable by fontsize?.
- the rest of the areas in the mask image needs to be black [0 0 0].
See the sample image below which is NOT done in Matlab. Is this achievable in Matlab?
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Image Analyst
el 3 de Oct. de 2022
Editada: Image Analyst
el 3 de Oct. de 2022
It's a trivial modification of the code in the FAQ that draws a ring. Just make two rings with different centers and radii.
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Image Analyst
el 4 de Oct. de 2022
Thanks. You can use imbinarize to force it to have no "noise" or gray levels, which are probably used to anti-alias (smooth) the character. Also, if you save the image(s) make sure you use the PNG extension, for lossless compression, rather than JPG which will change and add gray levels due to it being lossy compression.
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