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From: praniti on 23 Feb 2010 06:25
basically we have to count the number of pixels lying within the boundary of the apple.(red region)


please view the apple image:
http://www.h4x3d.com/feat/themes/red-apple.jpg
From: ImageAnalyst on 23 Feb 2010 09:08
On Feb 23, 6:25 am, "praniti " <praniti3...(a)gmail.com> wrote:
>  basically we have to count the number of pixels lying within the boundary of the apple.(red region)
>
> please view the apple image:http://www.h4x3d.com/feat/themes/red-apple.jpg

---------------------------------------------------------------------------------
Search the newsgroup for "fruit" or "chili" -- it's seems to be a very
common application for people to get started with image processing.

Or look into my demo:
http://www.mathworks.com/matlabcentral/fileexchange/26420-simplecolordetection

Description This script is a demo that shows you how to find objects
of a certain color in an image. For this example I'm using the
standard onion, peppers, or canoe image that ships with the Image
Processing Toolbox. You can also select one of your own color images
instead if you wish. Then I separate the image into its component red,
green, and blue color bands. I compute thresholds, and ultimately find
a mask for the red objects. Prompts will guide you through the demo
step by step. I multiply this mask by the original image to show the
image with only the red objects showing and everything else blacked
out. This script can be adapted to find other colors (white, green,
blue, yellow, etc.)

If you want to do any measurements of the red objects, I refer you to
my blob measurement demo file at http://www.mathworks.com/matlabcentral/fileexchange/25157

Requires the Image Processing Toolbox. Tested with R2008b and R2010a.
From: Cokelid on 23 Feb 2010 11:20
On Feb 23, 6:25 am, "praniti " <praniti3...(a)gmail.com> wrote:
>  basically we have to count the number of pixels lying within the boundary of the apple.(red region)
>
> please view the apple image:http://www.h4x3d.com/feat/themes/red-apple.jpg

Pranti,

I can see you've obviously tried hard to solve it yourself, so I've
uploaded this for you.

http://www.mathworks.com/matlabcentral/fileexchange/85969-doing-other-peoples-homework-for-free
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