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I'm developing an application that will take a photo (or grab one from the photo library) and then slash it into 9 separate, rectangular pieces. Can anyone perhaps provide some insight into what functions I should be using? Any help would be most appreciated!
...very roughly I would grab the pixels of the main picture allocate them into the 9 smaller images That is a very abstract answer..
you will make a double for loop , remember that each image is a two dimensional array of pixels you will divide the width and height of the pic by 3 and use the numbers that come as "limit vars" that will define the spectrum of your for loops . so that you have a loop from pixels 1 to 100 from 100 to 200 and 200 to 300 (if your image is 300x300. 1,100,200,300 would be replaced by the vars.
after grabbing the pixels you will allocate them into a new image and then end the for loop and go to the other one.
I would also use a c++ vector to push back the images into...
there are other objects for images outhere if you don't like UIImage
thepais
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0 • Off Topic Insightful Disagree Dislike Like Awesomeyou will make a double for loop , remember that each image is a two dimensional array of pixels you will divide the width and height of the pic by 3 and use the numbers that come as "limit vars" that will define the spectrum of your for loops . so that you have a loop from pixels 1 to 100 from 100 to 200 and 200 to 300 (if your image is 300x300. 1,100,200,300 would be replaced by the vars.
after grabbing the pixels you will allocate them into a new image and then end the for loop and go to the other one.
I would also use a c++ vector to push back the images into...
there are other objects for images outhere if you don't like UIImage
http://developer.apple.com/library/ios/#documentation/uikit/reference/UIImage_Class/Reference/Reference.html
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0 • Off Topic Insightful Disagree Dislike Like AwesomeAdding a method like this:
UIImage* subimage = [originalImage subimageWithRect:CGRectMake(0, 0, 100, 100)];Should be useful for you.
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0 • Off Topic Insightful Disagree Dislike Like Awesome