Gaussian Blur (Gaussian Blur) and frosted glass effects (also known as scrub effects) have become more popular in mobile UI design for the last two years, especially on iOS phones, and the iOS system also provides APIs to help developers achieve both of these effects in minutes. And the Android system has gone through a long process of exploration, the processing of pictures, from Java algorithm to the impl
CSS3 Animation: color text effect + image blur effect + border stretch effect, css3 text EffectPreface
First, layout the html code as follows:
As shown above, the first image img is the DOM element that achieves the blur effect o
Wrote a few days ago a method of using glide-transformations to achieve Gaussian blur method, today accidentally found a great God wrote another way, feel pretty good, share:
Effect Chart:
Original link: Click to visit
This is also easy to use, import dependencies, use the Fuzzy method on the line, the two steps to fix
Depend on:
Compile
' Net.qiujuer.genius:blur:2.0.0-beta4 '
There are three ways
ObjectiveFirst, the first step is to lay out the HTML code as follows:Divclass= "Wrap"> imgsrc= "Images/1.jpg"class= "Blur"/> Divclass= "Text-gradient">DivineDiv> Divclass= "Border">Div>Div>Above the first picture img is the DOM element that implements the image blur effect,text-gradient implements the DOM element of the streaming color text
The Blur effect (blureffect) and Shadow effect (Dropshadoweffect) are two very useful and commonly used two effects, such as in the development album, you can add a blur effect to the thumbnail image of the photo, Dynamically change the size of the photo and
] initWithFrame:self.view.bounds];
Bgimgview.image = [UIImage imagenamed:@ "huoying.jpg"];
Bgimgview.contentmode = Uiviewcontentmodescaleaspectfill;
The processing parameters of the hair glass effect on the background picture Blurradius by default, you can specify that the last parameter block callback can be nil
[Bgimgview setimagetoblur: [UIImage imagenamed:@] Huoying.jpg "] blurRadius:completionBlock:nil];
bgimgview.userinteractionenabled = YES;
This article deals with the blur effect of image effects. As in front of the pixel is processed, the algorithm is generic, but the time will be longer, as for why, look at the following code you will understand.Algorithm:A simple algorithm: the pixel points around eight points including its own total of nine points of the RGB value is added after the average, as the current pixel RGB value, you can achieve
=Kheadminh; the } - -Self.headViewHeight.constant =height; - + - //set the transparency of the navigation bar +CGFloat alpha = OffsetY/(Kheadh-Kheadminh); A if(Alpha >=1) { atAlpha =1; - } -NSLog (@"%f", Alpha); -Self.navigationController.navigationBar.alpha =Alpha; -Self.visualEffectView.alpha =Alpha; -}In order to be able to hover the selector under the navigation bar, we want to set the height of the picture, the minimum is 64.Note: Remember to add the followin
Renderscript rs = renderscript.create (context);
Create a fuzzy effect of the Renderscript tool object Scriptintrinsicblur Blurscript = Scriptintrinsicblur.create (RS, Element.u8_4 (RS));
Because Renderscript does not use a VM to allocate memory, you need to use the allocation class to create and allocate memory space.
When you create a allocation object, the memory is empty, and you need to use CopyTo () to populate the data. Allocation Tmpi
It's written in front.
Recently has been doing the preparation of the project, considering the possible use of a fuzzy effect, so I learned some Gauss fuzzy effect of the implementation. More famous is the Fastblur and its derivative of some of the optimization scheme, there is today to say renderscript.
Because this thing is now need to learn, so about some image processing and rendering problems do not
BlurSince the iOS system introduced the Blur effect, that is, the so-called frosted glass, blur effect, matte effect, the big system began to race to imitate, this is a kind of effect, we now look at some diagram:These are typical
IOS picture background blur effect 1. Using the blur filter in CoreimageThe original is as follows:Implementation of Coreimage:- (void) Viewdidload {[Super Viewdidload];Additional setup after loading the view, typically from a nib.UIImage * image = [UIImage imagenamed:@"Icon"];/*.. Blur
Http://www.cnblogs.com/xiaofeixiang/p/5129074.htmliOS development sometimes need to blur the picture, or by clicking the drop-down method, to remove the blur, everything is for the application more popular with users, after iOS7 translucent blur effect to get a large range of use of the relatively large, and now can se
OpenGL Road (9) color mixing to achieve transparent effect, opengl road color mixing
Use alpha hybrid to achieve transparent effects and penetrate 3d objects
The source code is as follows:
# Include
Image used:
Effect preview:
How does OpenGL implement gradient transp
Android for Gaussian Blur effect and low version compatibilityHello, long time no see, long time No blog, summed up the following reasons have three, first, become lazy, second, become lazy, third, or become lazy, because any don't update blog reason is an excuse!first, the effect demonstrationThe project uses the Gaussian bl
One, the effect demonstration
The project used a Gaussian blur effect, looked over some data, considering the performance of the final choice to use the Android Renderscript Library to achieve, on the use of renderscript to achieve a Gaussian blur online there are many similar methods, most of the summary of the relat
is a blur of the value of a large case. At this point the solution is to direct the background-size:cover, to background-size:150% 150%, on the line. The effect chart is as follows:
A closer look reveals that the white side is less obvious.
The other is when the value of the blur is relatively small, such as the above
GPUImageGaussianBlurFilter*blurFilter=[[GPUImageGaussianBlurFilteralloc]init];blurFilter.blurRadiusInPixels=2.0;UIImage*image=[UIImageimageNamed:@"xxx"];UIImage*blurredImage=[blurFilterimageByFilteringImage:image];
At least it looks like the code is much simpler than using the core image.2. VimageIn fact, after saying the above core image and Gpuimage, in many cases it is enough. Now let's look at one more, that's vimage. Vimage is also an apple-launched library in Accelerate.fr
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