2014/10/15 下午 10:10:10

iphone Programming Glossary: image.size.height

Blur an image of specific part (rectangular, circular)?

http://stackoverflow.com/questions/14107979/blur-an-image-of-specific-part-rectangular-circular

img withImage2 UIImage img2 andRect CGRect cropRect CGSize size CGSizeMake imageView.image.size.width imageView.image.size.height UIGraphicsBeginImageContext size CGPoint pointImg1 CGPointMake 0 0 img drawAtPoint pointImg1 CGPoint pointImg2 cropRect.origin.. CGFloat radious if radious 0.0f return image if image nil CGFloat imageWidth image.size.width CGFloat imageHeight image.size.height CGRect rect CGRectMake 0.0f 0.0f imageWidth imageHeight UIWindow window UIApplication sharedApplication windows objectAtIndex.. self.imageView double ratioW imageView.image.size.width imageView.frame.size.width double ratioH imageView.image.size.height imageView.frame.size.height currentPoint.x ratioW currentPoint.y ratioH double circleSizeW 30 ratioW double circleSizeH..

UIImage color changing?

http://stackoverflow.com/questions/1698971/uiimage-color-changing

UIImage image const int RED 1 GREEN 2 BLUE 3 CGRect imageRect CGRectMake 0 0 image.size.width 2 image.size.height 2 int width imageRect.size.width height imageRect.size.height uint32_t pixels uint32_t malloc width height sizeof uint32_t.. context alpha CGContextFillRect UIGraphicsGetCurrentContext CGRectMake CGPointZero.x CGPointZero.y image.size.width image.size.height UIImage tintedImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return tintedImage How To For a..

UISearchBar clear background color or set background image [iphone sdk]

http://stackoverflow.com/questions/2139115/uisearchbar-clear-background-color-or-set-background-image-iphone-sdk

if subview isKindOfClass NSClassFromString @ UISegmentedControl subview.alpha 0.0 CGContextTranslateCTM contenxt 0 image.size.height CGContextScaleCTM contenxt 1.0 1.0 CGContextDrawImage contenxt CGRectMake 0 0 image.size.width image.size.height image.CGImage.. 0 image.size.height CGContextScaleCTM contenxt 1.0 1.0 CGContextDrawImage contenxt CGRectMake 0 0 image.size.width image.size.height image.CGImage @end @ .h #import Foundation Foundation.h #import QuartzCore QuartzCore.h @interface UISearchBar CustomBackground..

How to crop the UIImage?

http://stackoverflow.com/questions/2635371/how-to-crop-the-uiimage

image .I have the develop code are NSInteger processImage1 UIImage image CGFloat width image.size.width CGFloat height image.size.height struct pixel pixels struct pixel calloc 1 image.size.width image.size.height sizeof struct pixel if pixels nil Create a.. width image.size.width CGFloat height image.size.height struct pixel pixels struct pixel calloc 1 image.size.width image.size.height sizeof struct pixel if pixels nil Create a new bitmap CGContextRef context CGBitmapContextCreate void pixels image.size.width.. pixel if pixels nil Create a new bitmap CGContextRef context CGBitmapContextCreate void pixels image.size.width image.size.height 8 image.size.width 4 CGImageGetColorSpace image.CGImage kCGImageAlphaPremultipliedLast if context NULL Draw the image..

Convert Image to B&W problem CGContext - iPhone Dev

http://stackoverflow.com/questions/3340564/convert-image-to-bw-problem-cgcontext-iphone-dev

UIImage image Create image rectangle with current image width height CGRect imageRect CGRectMake 0 0 image.size.width image.size.height Grayscale color space CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceGray Create bitmap content with current image size.. with current image size and grayscale colorspace CGContextRef context CGBitmapContextCreate nil image.size.width image.size.height 8 0 colorSpace kCGImageAlphaNone Draw image into current context with specified rectangle using previously defined context.. PROBLEM Create image rectangle with current image width height CGRect imageRect CGRectMake 0 0 image.size.width image.size.height Grayscale color space CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceGray Create bitmap content with current image size..

Image processing Glamour filter in iphone

http://stackoverflow.com/questions/3549396/image-processing-glamour-filter-in-iphone

CGDataProviderCopyData provider UInt8 data UInt8 CFDataGetBytePtr bitmapData int width image.size.width int height image.size.height NSInteger myDataLength width height 4 for int i 0 i myDataLength i 4 UInt8 r_pixel data i UInt8 g_pixel data i 1 UInt8..

CoreGraphics for retina display

http://stackoverflow.com/questions/4707465/coregraphics-for-retina-display

createImageSection UIImage image section CGRect section float originalWidth image.size.width float originalHeight image.size.height int w originalWidth section.size.width int h originalHeight section.size.height CGContextRef ctx CGBitmapContextCreate nil..

How to write text on image in objective-c iPhone?

http://stackoverflow.com/questions/6992830/how-to-write-text-on-image-in-objective-c-iphone

UIFont boldSystemFontOfSize 12 UIGraphicsBeginImageContext image.size image drawInRect CGRectMake 0 0 image.size.width image.size.height CGRect rect CGRectMake point.x point.y image.size.width image.size.height UIColor whiteColor set text drawInRect CGRectIntegral.. drawInRect CGRectMake 0 0 image.size.width image.size.height CGRect rect CGRectMake point.x point.y image.size.width image.size.height UIColor whiteColor set text drawInRect CGRectIntegral rect withFont font UIImage newImage UIGraphicsGetImageFromCurrentImageContext.. the line UIColor whiteColor set UIColor brownColor set CGContextFillRect UIGraphicsGetCurrentContext CGRectMake 0 image.size.height text sizeWithFont font .height image.size.width image.size.height I'm using the text size to calculate the origin for..