¡@
2014/10/15 ¤U¤È 10:14:08
iphone Programming Glossary: sharphttp://stackoverflow.com/questions/11173605/detecting-a-clap-in-ios better of doing a spectral analysis FFT of the input signal and then looking in a much narrower frequency band for a sharp signal spike similar to the part you already have. I haven't looked closely at this source but here's some possible open..
http://stackoverflow.com/questions/12257429/how-do-i-modify-a-gpuimagegaussianselectiveblurfilter-to-operate-over-a-rectangl chooses the circular part of the image to not be blurred. How can I alter this to make the sharp region be rectangular in shape instead iphone ios instagram gpuimage share improve this question Because Gill's answer.. lowp vec2 excludeCirclePoint uniform lowp float excludeBlurSize uniform highp float aspectRatio void main lowp vec4 sharpImageColor texture2D inputImageTexture textureCoordinate lowp vec4 blurredImageColor texture2D inputImageTexture2 textureCoordinate2.. 0.5 0.5 aspectRatio highp float distanceFromCenter distance excludeCirclePoint textureCoordinateToUse gl_FragColor mix sharpImageColor blurredImageColor smoothstep excludeCircleRadius excludeBlurSize excludeCircleRadius distanceFromCenter This fragment..
how to sharp/blur an uiimage in iphone? http://stackoverflow.com/questions/1486051/how-to-sharp-blur-an-uiimage-in-iphone to sharp blur an uiimage in iphone I have a view with UIImageView and an UIImage set to it. How do I make image sharp or blur using.. to sharp blur an uiimage in iphone I have a view with UIImageView and an UIImage set to it. How do I make image sharp or blur using coregraphics iphone objective c cocoa touch core graphics share improve this question Apple has a great.. share improve this question Apple has a great sample program called GLImageProcessing that includes a very fast blur sharpen effect using OpenGL ES 1.1 meaning it works on all iPhones not just the 3gs. If you're not fairly experienced with OpenGL..
Zoom UILabel & Re-render font at correct size http://stackoverflow.com/questions/1990458/zoom-uilabel-re-render-font-at-correct-size a transform to your content view which results in blurriness at anything above a scale factor of 1.0. For truly sharp rendering you'll need to handle the scaling yourself. I describe a chunk of the process in this answer . You'll need to..
Blurry UILabel as programmatic subview of UITableViewCell contentView http://stackoverflow.com/questions/2047294/blurry-uilabel-as-programmatic-subview-of-uitableviewcell-contentview . When I select the cell the row is highlighted blue except for the background of the label. The label text is sharp. When I set the label and content view backgroundColor property to UIColor clearColor the label text becomes blurry. How.. the label background color to be clear to allow the row highlight to come through while still keeping the label text sharp One suggestion I read elsewhere was to round the label's frame values but this did not have any effect. CODE Here is a snippet..
How to capture UIView to UIImage without loss of quality on retina display http://stackoverflow.com/questions/4334233/how-to-capture-uiview-to-uiimage-without-loss-of-quality-on-retina-display the iPhone 4 is applying a filter when you implicitly scale it up or just your brain is picking up on it being less sharp than everything around it. So I guess #import QuartzCore QuartzCore.h UIImage imageWithView UIView view UIGraphicsBeginImageContextWithOptions..
How to make something like iPhone Folders? http://stackoverflow.com/questions/4493837/how-to-make-something-like-iphone-folders programmatically so I can't provide sample code p EDIT hey hey it's not looking great but it works ^^ wouldn't be sharp on retina displays instead use withOptions and set scale to 0.0 UIGraphicsBeginImageContext self.view.bounds.size UIGraphicsBeginImageContextWithOptions..
http://stackoverflow.com/questions/4504614/opengl-es-retina-support a Retina display are twice the values they are on a standard iPhone display. The code you show above should cause nice sharp rendering on a Retina display. EDIT 12 22 2010 In response to your further question looking at the avTouch sample code shows..
how to implement my own zooming but still have access to the UIScrollView's scrolling? http://stackoverflow.com/questions/493219/how-to-implement-my-own-zooming-but-still-have-access-to-the-uiscrollviews-scro your content view at the new scale once the pinch zooming has finished. This would let you refresh your drawing with sharp grid lines once the zoom is done. Additionally if you're not really scaling and you want to change another property of your..
PVR textures versus PNG in OpenGL ES http://stackoverflow.com/questions/501956/pvr-textures-versus-png-in-opengl-es exported from any image editing software directly and quickly. PVRs Low precision lossy compression 2 levels blocky no sharp edges and smooth gradients. Image quality varies with content. 2 bit and 4 bit compression methods are available 3 or 4..
What are the Dangers of Method Swizzling in Objective C? http://stackoverflow.com/questions/5339276/what-are-the-dangers-of-method-swizzling-in-objective-c question most answers have skirted the issue and simply said not to use swizzling. Using method sizzling is like using sharp knives in the kitchen. Some people are scared of sharp knives because they think they'll cut themselves badly but the truth.. said not to use swizzling. Using method sizzling is like using sharp knives in the kitchen. Some people are scared of sharp knives because they think they'll cut themselves badly but the truth is that sharp knives are safer . Method swizzling can.. kitchen. Some people are scared of sharp knives because they think they'll cut themselves badly but the truth is that sharp knives are safer . Method swizzling can be used to write better more efficient more maintainable code. It can also be abused..
Apple Push Notifications, how do I properly export my cert? http://stackoverflow.com/questions/6576660/apple-push-notifications-how-do-i-properly-export-my-cert 2009 07 10 how to build an apple push notification provider server tutorial http code.google.com p apns sharp wiki HowToCreatePKCS12Certificate http wiki.cs.unh.edu wiki index.php Using_the_Apple_Push_Notification_Service Not a single..
iOS - How to achieve emboss effect for the text on UILabel? http://stackoverflow.com/questions/8467141/ios-how-to-achieve-emboss-effect-for-the-text-on-uilabel We apply the mask twice because we're going to draw through it twice. Only applying it once would make the edges too sharp. CGContextClipToMask gc rect mask.CGImage mask nil done with mask let ARC free it Draw the red text. textColor setFill CGContextFillRect..
|