2014/10/15 下午 10:05:04

iphone Programming Glossary: cgimagegetbitspercomponent

Resizing UIimages pulled from the Camera also ROTATES the UIimage?

http://stackoverflow.com/questions/1260249/resizing-uiimages-pulled-from-the-camera-also-rotates-the-uiimage

alphaInfo kCGImageAlphaNoneSkipLast CGContextRef bitmap CGBitmapContextCreate NULL width height CGImageGetBitsPerComponent imageRef 4 width CGImageGetColorSpace imageRef alphaInfo CGContextDrawImage bitmap CGRectMake 0 0 width.. UIImageOrientationDown bitmap CGBitmapContextCreate NULL targetWidth targetHeight CGImageGetBitsPerComponent imageRef CGImageGetBytesPerRow imageRef colorSpaceInfo bitmapInfo else bitmap CGBitmapContextCreate.. imageRef colorSpaceInfo bitmapInfo else bitmap CGBitmapContextCreate NULL targetHeight targetWidth CGImageGetBitsPerComponent imageRef CGImageGetBytesPerRow imageRef colorSpaceInfo bitmapInfo if sourceImage.imageOrientation UIImageOrientationLeft..

How to Rotate a UIImage 90 degrees?

http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees

UIImageOrientationDown bitmap CGBitmapContextCreate NULL targetHeight targetWidth CGImageGetBitsPerComponent imageRef CGImageGetBytesPerRow imageRef colorSpaceInfo bitmapInfo else bitmap CGBitmapContextCreate.. imageRef colorSpaceInfo bitmapInfo else bitmap CGBitmapContextCreate NULL targetWidth targetHeight CGImageGetBitsPerComponent imageRef CGImageGetBytesPerRow imageRef colorSpaceInfo bitmapInfo if sourceImage.imageOrientation UIImageOrientationRight..

iOS UIImagePickerController result image orientation after upload

http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload

calculated above. CGContextRef ctx CGBitmapContextCreate NULL self.size.width self.size.height CGImageGetBitsPerComponent self.CGImage 0 CGImageGetColorSpace self.CGImage CGImageGetBitmapInfo self.CGImage CGContextConcatCTM..

How to Mask an UIImageView

http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview

CGImageRef mask CGImageMaskCreate CGImageGetWidth maskRef CGImageGetHeight maskRef CGImageGetBitsPerComponent maskRef CGImageGetBitsPerPixel maskRef CGImageGetBytesPerRow maskRef CGImageGetDataProvider maskRef..

Dispelling the UIImage imageNamed: FUD

http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud

CGImageRef image CGImageCreate CGImageGetWidth originalImage CGImageGetHeight originalImage CGImageGetBitsPerComponent originalImage CGImageGetBitsPerPixel originalImage CGImageGetBytesPerRow originalImage CGImageGetColorSpace..

Resizing UIimages pulled from the Camera also ROTATES the UIimage?

http://stackoverflow.com/questions/1260249/resizing-uiimages-pulled-from-the-camera-also-rotates-the-uiimage

CGImageGetAlphaInfo imageRef if alphaInfo kCGImageAlphaNone alphaInfo kCGImageAlphaNoneSkipLast CGContextRef bitmap CGBitmapContextCreate NULL width height CGImageGetBitsPerComponent imageRef 4 width CGImageGetColorSpace imageRef alphaInfo CGContextDrawImage bitmap CGRectMake 0 0 width height imageRef CGImageRef ref CGBitmapContextCreateImage.. UIImageOrientationUp sourceImage.imageOrientation UIImageOrientationDown bitmap CGBitmapContextCreate NULL targetWidth targetHeight CGImageGetBitsPerComponent imageRef CGImageGetBytesPerRow imageRef colorSpaceInfo bitmapInfo else bitmap CGBitmapContextCreate NULL targetHeight targetWidth CGImageGetBitsPerComponent imageRef.. CGImageGetBitsPerComponent imageRef CGImageGetBytesPerRow imageRef colorSpaceInfo bitmapInfo else bitmap CGBitmapContextCreate NULL targetHeight targetWidth CGImageGetBitsPerComponent imageRef CGImageGetBytesPerRow imageRef colorSpaceInfo bitmapInfo if sourceImage.imageOrientation UIImageOrientationLeft CGContextRotateCTM bitmap radians 90 CGContextTranslateCTM..

How to Rotate a UIImage 90 degrees?

http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees

UIImageOrientationUp sourceImage.imageOrientation UIImageOrientationDown bitmap CGBitmapContextCreate NULL targetHeight targetWidth CGImageGetBitsPerComponent imageRef CGImageGetBytesPerRow imageRef colorSpaceInfo bitmapInfo else bitmap CGBitmapContextCreate NULL targetWidth targetHeight CGImageGetBitsPerComponent imageRef.. CGImageGetBitsPerComponent imageRef CGImageGetBytesPerRow imageRef colorSpaceInfo bitmapInfo else bitmap CGBitmapContextCreate NULL targetWidth targetHeight CGImageGetBitsPerComponent imageRef CGImageGetBytesPerRow imageRef colorSpaceInfo bitmapInfo if sourceImage.imageOrientation UIImageOrientationRight CGContextRotateCTM bitmap radians 90..

iOS UIImagePickerController result image orientation after upload

http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload

underlying CGImage into a new context applying the transform calculated above. CGContextRef ctx CGBitmapContextCreate NULL self.size.width self.size.height CGImageGetBitsPerComponent self.CGImage 0 CGImageGetColorSpace self.CGImage CGImageGetBitmapInfo self.CGImage CGContextConcatCTM ctx transform switch self.imageOrientation case UIImageOrientationLeft..

How to Mask an UIImageView

http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview

image withMask UIImage maskImage CGImageRef maskRef maskImage.CGImage CGImageRef mask CGImageMaskCreate CGImageGetWidth maskRef CGImageGetHeight maskRef CGImageGetBitsPerComponent maskRef CGImageGetBitsPerPixel maskRef CGImageGetBytesPerRow maskRef CGImageGetDataProvider maskRef NULL false CGImageRef maskedImageRef CGImageCreateWithMask image..

Dispelling the UIImage imageNamed: FUD

http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud

CGDataProviderCreateWithCFData imageData CFRelease imageData CGImageRef image CGImageCreate CGImageGetWidth originalImage CGImageGetHeight originalImage CGImageGetBitsPerComponent originalImage CGImageGetBitsPerPixel originalImage CGImageGetBytesPerRow originalImage CGImageGetColorSpace originalImage CGImageGetBitmapInfo originalImage imageDataProvider..

How to change thin image to fat image in iPhone SDK?

http://stackoverflow.com/questions/10186200/how-to-change-thin-image-to-fat-image-in-iphone-sdk

pixel data size_t width CGImageGetWidth imageRef size_t height CGImageGetHeight imageRef size_t bitsPerComponent CGImageGetBitsPerComponent imageRef size_t bitsPerPixel CGImageGetBitsPerPixel imageRef size_t bytesPerRow CGImageGetBytesPerRow imageRef CGColorSpaceRef..

Any idea why this image masking code does not work?

http://stackoverflow.com/questions/1133248/any-idea-why-this-image-masking-code-does-not-work

maskRef maskImage.CGImage CGImageRef mask CGImageMaskCreate CGImageGetWidth maskRef CGImageGetHeight maskRef CGImageGetBitsPerComponent maskRef CGImageGetBitsPerPixel maskRef CGImageGetBytesPerRow maskRef CGImageGetDataProvider maskRef NULL false CGImageRef..

Resizing UIimages pulled from the Camera also ROTATES the UIimage?

http://stackoverflow.com/questions/1260249/resizing-uiimages-pulled-from-the-camera-also-rotates-the-uiimage

kCGImageAlphaNone alphaInfo kCGImageAlphaNoneSkipLast CGContextRef bitmap CGBitmapContextCreate NULL width height CGImageGetBitsPerComponent imageRef 4 width CGImageGetColorSpace imageRef alphaInfo CGContextDrawImage bitmap CGRectMake 0 0 width height imageRef.. sourceImage.imageOrientation UIImageOrientationDown bitmap CGBitmapContextCreate NULL targetWidth targetHeight CGImageGetBitsPerComponent imageRef CGImageGetBytesPerRow imageRef colorSpaceInfo bitmapInfo else bitmap CGBitmapContextCreate NULL targetHeight targetWidth.. imageRef colorSpaceInfo bitmapInfo else bitmap CGBitmapContextCreate NULL targetHeight targetWidth CGImageGetBitsPerComponent imageRef CGImageGetBytesPerRow imageRef colorSpaceInfo bitmapInfo if sourceImage.imageOrientation UIImageOrientationLeft..

How to Rotate a UIImage 90 degrees?

http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees

sourceImage.imageOrientation UIImageOrientationDown bitmap CGBitmapContextCreate NULL targetHeight targetWidth CGImageGetBitsPerComponent imageRef CGImageGetBytesPerRow imageRef colorSpaceInfo bitmapInfo else bitmap CGBitmapContextCreate NULL targetWidth targetHeight.. imageRef colorSpaceInfo bitmapInfo else bitmap CGBitmapContextCreate NULL targetWidth targetHeight CGImageGetBitsPerComponent imageRef CGImageGetBytesPerRow imageRef colorSpaceInfo bitmapInfo if sourceImage.imageOrientation UIImageOrientationRight..

Inner Shadow in UILabel

http://stackoverflow.com/questions/3231690/inner-shadow-in-uilabel

CGImage UIGraphicsEndImageContext CGImageRef mask CGImageMaskCreate CGImageGetWidth shape CGImageGetHeight shape CGImageGetBitsPerComponent shape CGImageGetBitsPerPixel shape CGImageGetBytesPerRow shape CGImageGetDataProvider shape NULL false return mask..

UIImage - implementing an auto levels algorithm

http://stackoverflow.com/questions/3278560/uiimage-implementing-an-auto-levels-algorithm

whitePoint blackPoint whitePoint decodedImage CGImageCreate CGImageGetWidth origImage CGImageGetHeight origImage CGImageGetBitsPerComponent origImage CGImageGetBitsPerPixel origImage CGImageGetBytesPerRow origImage CGImageGetColorSpace origImage CGImageGetBitmapInfo..

how to add watermark on a exist image

http://stackoverflow.com/questions/4068035/how-to-add-watermark-on-a-exist-image

iOS UIImagePickerController result image orientation after upload

http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload

the transform calculated above. CGContextRef ctx CGBitmapContextCreate NULL self.size.width self.size.height CGImageGetBitsPerComponent self.CGImage 0 CGImageGetColorSpace self.CGImage CGImageGetBitmapInfo self.CGImage CGContextConcatCTM ctx transform..

iPhone CGContextRef CGBitmapContextCreate unsupported parameter combination

http://stackoverflow.com/questions/5545600/iphone-cgcontextref-cgbitmapcontextcreate-unsupported-parameter-combination

imageRef self.CGImage CGContextRef bitmap CGBitmapContextCreate NULL newRect.size.width newRect.size.height CGImageGetBitsPerComponent imageRef 0 CGImageGetColorSpace imageRef CGImageGetBitmapInfo imageRef if bitmap nil return nil CGContextConcatCTM.. CGContextRef bitmap CGBitmapContextCreate NULL newRect.size.width newRect.size.height CGImageGetBitsPerComponent imageRef 0 rgbColorSpace CGImageGetColorSpace imageRef sometimes contains unsupported colorspace bitmapInfo CGColorSpaceRelease..

How to Mask an UIImageView

http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview

Getting RGB pixel data from CGImage

http://stackoverflow.com/questions/6073259/getting-rgb-pixel-data-from-cgimage

CGImageGetHeight cgimage size_t bpr CGImageGetBytesPerRow cgimage size_t bpp CGImageGetBitsPerPixel cgimage size_t bpc CGImageGetBitsPerComponent cgimage size_t bytes_per_pixel bpp bpc CGBitmapInfo info CGImageGetBitmapInfo cgimage NSLog @ n @ n CGImageGetHeight d.. cgimage NSLog @ n @ n CGImageGetHeight d n CGImageGetWidth d n CGImageGetColorSpace @ n CGImageGetBitsPerPixel d n CGImageGetBitsPerComponent d n CGImageGetBytesPerRow d n CGImageGetBitmapInfo 0x .8X n kCGBitmapAlphaInfoMask s n kCGBitmapFloatComponents s n kCGBitmapByteOrderMask.. 5 CGImageGetWidth 3 CGImageGetColorSpace CGColorSpace 0x4d08ff0 kCGColorSpaceDeviceRGB CGImageGetBitsPerPixel 32 CGImageGetBitsPerComponent 8 CGImageGetBytesPerRow 20 CGImageGetBitmapInfo 0x00000003 kCGBitmapAlphaInfoMask YES kCGBitmapFloatComponents NO kCGBitmapByteOrderMask..

Is there an SDK to draw lines on iOS with touch?

http://stackoverflow.com/questions/6774352/is-there-an-sdk-to-draw-lines-on-ios-with-touch

Dispelling the UIImage imageNamed: FUD

http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud

CFRelease imageData CGImageRef image CGImageCreate CGImageGetWidth originalImage CGImageGetHeight originalImage CGImageGetBitsPerComponent originalImage CGImageGetBitsPerPixel originalImage CGImageGetBytesPerRow originalImage CGImageGetColorSpace originalImage..