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imAgE 转DAtA

+ (UIImage *)imageWithData:(NSData *)data; + (UIImage *)imageWithData:(NSData *)data scale:(CGFloat)scale NS_AVAILABLE_IOS(6_0)

UIImage *image = [UIImage imageNamed:@"m2.png"]; NSData *data = UIImagePNGRepresentation(image); 或者 NSData *data =UIImageJPEGRepresentation(image, 1.0);

UIImagePNGRepresentation Returns the data for the specified image in PNG format NSData * UIImagePNGRepresentation ( UIImage *image );

function convertImgToBase64(url, callback, outputFormat){ var canvas = document.createElement('CANVAS'), ctx = canvas.getContext('2d'), img = new Image; img.crossOrigin = 'Anonymous'; img.onload = function(){ canvas.height = im...

+ (UIImage *)imageWithData:(NSData *)data; + (UIImage *)imageWithData:(NSData *)data scale:(CGFloat)scale NS_AVAILABLE_IOS(6_0)

+ (UIImage *)imageWithData:(NSData *)data; + (UIImage *)imageWithData:(NSData *)data scale:(CGFloat)scale NS_AVAILABLE_IOS(6_0);

StackOverFlow就是NB啊!! NSURL *imageRefURL = [info valueForKey:UIImagePickerControllerReferenceURL]; ALAssetsLibrary* assetLibrary = [[ALAssetsLibrary alloc] init]; void (^ALAssetsLibraryAssetForURLResultBlock)(ALAsset *) = ^...

大手一挥,收!

把图片内容就是src部分传到后台,保存即可。 $img_content // 图片内容if (preg_match('/^(data:\s*image\/(\w+);base64,)/', $img_content, $result)){ $type = $result[2]; $new_file = "./test.{$type}"; if (file_put_contents($new_file, ba...

解决方法: #pragma mark Convert SampleBuffer to UIImage // Works only if pixel format is kCVPixelFormatType_420YpCbCr8BiPlanarFullRange - (UIImage *)convertSampleBufferToUIImageSampleBuffer:(CMSampleBufferRef)sampleBuffer{ // Ge...

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