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Re: non rectangular crop

• To: mathgroup at smc.vnet.net
• Subject: [mg110734] Re: non rectangular crop
• From: Helen Read <hpr at together.net>
• Date: Sun, 4 Jul 2010 03:08:23 -0400 (EDT)
• References: <i0kigf$19s$1@smc.vnet.net>
• Reply-to: HPR <read at math.uvm.edu>

On 7/2/2010 7:28 AM, Alessandro wrote:
> is it possible to have a not rectangular image in Mathematica?
>
> I have a lot of images acquired by microscope - they are all squared,
> with the circular field of view surrounded by black.
> I'd like - for further processing - to crop all the black region
> outside the circle.
>
> Or perhaps images are all rectangular in M?

disk = Graphics[Disk[]]

ImageAdd[disk, pic]

Where pic is your original image. You might have to adjust the size of 
the disk.

See the Documentation for lots of other functions for working with images:

guide/ImageProcessing


-- 
Helen Read
University of Vermont