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    <p>You can <a href="https://developer.apple.com/library/ios/documentation/uikit/reference/UIImage_Class/Reference/Reference.html#//apple_ref/occ/instm/UIImage/initWithData%3a" rel="nofollow">see the supported image formats for UIImage in table 1 here</a></p> <p>.tiff .tif .jpg .jpeg .gif .png .bmp .ico .cur .xbm are all readily incorporated using native methods of UIImage.</p> <p>If it is at all possible to get your images into this format before your app ingests them, you should try to do this as the <code>imageWithContentsOfFile:</code> or the <code>imageWithData:</code> methods will be infinitely less work for you to do than writing and using custom classes to parse and convert another format. </p> <p>Do you have a specific format you HAVE to use which can't be converted to a .tif .jpg .bmp or .png first?</p> <p><strong>Updating in response to OP</strong></p> <p>There may be projects out there that have done similar, but the only related experience I can offer you comes from a machine vision project where I had processed raw pixel data into raw data, and loaded it back into a CGImageRef for consumption by the interface.</p> <p>You'll likely be directly allocating memory and working in straight C for some of it</p> <p>Here's a taste of what I did (and again, no guarantees this will apply to your situation):</p> <pre><code>size_t bitMatrixSize = (height-2*k_kernelPixelRadius) * (width-2*k_kernelPixelRadius); unsigned char *bitMatrix = malloc(bitMatrixSize); //back to int, so only 1 byte per pixel needed //other methods manipulated the data stored in this unsigned char, then passed it to the following method +(CGImageRef)newImageFromBitMatrix:(unsigned char*)bitMatrix originalImagePixelHeight:(int)origHeight originalImagePixelWidth:(int)origWidth{ int pixelsInBitMatrix = (origHeight - (2 * k_kernelPixelRadius)) * (origWidth - (2 * k_kernelPixelRadius)); unsigned char *rawData = malloc(pixelsInBitMatrix * 4); //1 byte per char, 4 bytes per pixel (RGBA) int outputColor = 0; int byteIndex = 0; for (int i = 0; i &lt; pixelsInBitMatrix; i++) { //outputColor = (bitMatrix[i] == 1) ? 255 : 0; //This is the shorter form, the undefined grey was included for debugging. Remove it later if (bitMatrix[i] == 1) { outputColor = 255; } else if (bitMatrix[i] == 0) { outputColor = 0; } else { outputColor = 150; } rawData[byteIndex] = outputColor; rawData[byteIndex + 1] = outputColor; rawData[byteIndex + 2] = outputColor; rawData[byteIndex + 3] = 255; //alpha channel byteIndex += 4; } CGContextRef ctx = NULL; CGColorSpaceRef deviceRGB = CGColorSpaceCreateDeviceRGB(); size_t contextWidth = origWidth - (2 * k_kernelPixelRadius); size_t contextHeight = origHeight - (2 * k_kernelPixelRadius); size_t bytesPerRow = 4 * contextWidth; ctx = CGBitmapContextCreate(rawData, contextWidth, contextHeight, 8, bytesPerRow, deviceRGB, kCGImageAlphaPremultipliedLast ); CGImageRef thresholdImage = CGBitmapContextCreateImage (ctx); CGColorSpaceRelease(deviceRGB); CGContextRelease(ctx); free(rawData); return thresholdImage; free(bitMatrix); } </code></pre>
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    1. POCan non-standard unsupported image formats be used in mobile ios / android apps
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    1. COthanks for that :) its probably going to be a cutomized image format for some imaging application so it will probably not be converted to existing forms. So it can be done rite ? :) I also found this http://stackoverflow.com/questions/4874896/how-to-display-unsupportedformats-images-in-android-application but it doesnt mention clearly how. do u know any methods/classes that can be used, which i can try to read up on, that will help with bitmap mapping and then interpolating and painting the picture on screen
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