Access to separate pixel of JPEG image in Android

In my android project I need to get access for each separate pixel of JPEG image. Image created by built-in photo application. I try to convert JPEG into Bitmap class instance, but OutOfMemoryException was thrown. After searching info about this problem I have found the following solution: resiz开发者_开发百科e image! But quality of image is important in my project, and i can't resize it. Is there any way to get each-pixel access?

if your image is too big and the quality is important i suppose the best way is to use or create your own class to cut the image in zone (eg : 50*50 px) , there is several jpeg info class in the internet to help you understand how work jpeg files.

Have you tried BufferedImage ? (it's not in the sdk but maybe usable)

The nature of jpeg makes it very hard to get the value of a single pixel. The main reason is that the data is not byte aligned, another is that everything is encoded in blocks that can be of sizes 8x16, 16x8 and 8x8. Also, you need to handle subsampling of chroma values.

If the image contains restart markers, maybe you can skip into the image so you don't have to decode the whole image before getting the pixel value.