On 21 Jul 2009, at 03:50, Courtney Arnold wrote:
Hello all,
I need to programmatically parse/read through the contents of an
NSImage. I am unable to find a tutorial or documentation that would
explain how to do so. I would like to get some input on where I may
be able to search for this
From: Courtney Arnold court...@rnolds.com
Subject: Re: Cocoa Graphics Parsing
To: cocoa-dev@lists.apple.com
Date: Monday, 2009 July 20, 21:25
I am expecting that I am going to
have to drop down to lower levels. I want to be able to
manually parse an image of a UPC barcode. I assume
On 21 Jul 2009, at 04:05, Graham Cox wrote:
Internally, you have -getPixel:atX:y: which would presumably be the
workhorse at the heart of your class.
-getPixel:atX:y: is fine for the odd what-colour-is-this test, but
it's the wrong thing to use for any kind of intensive pixel access.
Hello all,
I need to programmatically parse/read through the contents of an
NSImage. I am unable to find a tutorial or documentation that would
explain how to do so. I would like to get some input on where I may be
able to search for this information.
thank you,
On 21/07/2009, at 11:50 AM, Courtney Arnold wrote:
I need to programmatically parse/read through the contents of an
NSImage. I am unable to find a tutorial or documentation that would
explain how to do so. I would like to get some input on where I may
be able to search for this
I am expecting that I am going to have to drop down to lower levels. I
want to be able to manually parse an image of a UPC barcode. I assume
that the best way to do so would be to potentially examine each single
pixel.
any information that you provide, I would appreciate it.
On Jul 20,
Hi Courtney,
Two resources that you might consider are the Quartz-dev mailing list and
Programming with Quartz by David Gelphman.
HTH,
Joel
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On 21/07/2009, at 12:25 PM, Courtney Arnold wrote:
I am expecting that I am going to have to drop down to lower levels.
I want to be able to manually parse an image of a UPC barcode. I
assume that the best way to do so would be to potentially examine
each single pixel.
any information
On Jul 20, 2009, at 7:25 PM, Courtney Arnold wrote:
I want to be able to manually parse an image of a UPC barcode.
That's not parsing, that's image recognition. There's a rather
extensive academic literature on the subject.
-jcr
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On 21/07/2009, at 12:25 PM, Courtney Arnold wrote:
I am expecting that I am going to have to drop down to lower levels.
I want to be able to manually parse an image of a UPC barcode. I
assume that the best way to do so would be to potentially examine
each single pixel.
As others have
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