blur shaft

In the practice of photography, the virtual background is a common means to highlight the main body. But because the actual focal length of the consumption-level DC lens is very short, it is more difficult to realize the shallow depth and blur the background. If we want to use a consumer-level DC can also achieve the virtual background of the main effect, then, Photoshop post-processing can be useful. The above effect picture, is using Photoshop post

css| Filter | If you use your hand to quickly across a painting that has not yet dried, the picture will become blurred. The blur attribute under CSS will achieve this fuzzy effect.Let's take a look at the expression of the Blur property: 　　Filter:blur (add=add,direction,strength=strength) We see that the Blur property has three parameters: Add, direction, streng

convolution processes to perform Gaussian blur on the image. The processing effect is not bad, it feels okay to process small images, but it is still too slow to process large images, on my P4 2.8 GB and 1 GB memory machines, perform Gaussian fuzzy q = 3, r = 5 on 10 million pixel images, excluding image loading and pre-data conversion, the processing speed has never been significantly improved after several modifications. The main reason is the gene

Write in frontNow, more and more apps are using the blur effect, which is called Gaussian Blur. As we all know, fuzzy rendering on the Android platform is a fairly CPU-intensive operation, which is unavoidable once it is handled poorly. In general, given the efficiency, the best way to render a picture is to use OpenGL, followed by the use of C++/C, where Java code is the least efficient and the slowest. Bu

App design often uses some blur effect. iOS has now provided some fuzzy APIs that can make it easy for us to use. One is to use the core Image, and the other is to use the Vimage API in Accelerate.framework.Blur using the core imageThe Core image was applied early in the Mac system, and later the framework was applied to iOS, but it wasn't until iOS6.0 began to support Blur. This API is easy to call and con

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 blur value to 20, the

view by sliding the scrollview * * @param offset ScrollView falling distance*/-(void) Updateheaderview: (cgpoint) offset {if(Offset.y 0) {CGRect rect= CGRectMake (0,0, Self.frame.size.width, self.frame.size.height); CGFloat Delta= Fabs (MIN (0.0f, Offset.y)); RECT.ORIGIN.Y-=Delta; Rect.size.height+=Delta; Self.imageScrollView.frame=rect; Self.clipstobounds=NO; Self.imageView.alpha= Fabs (Offset.y/(2* Cgrectgetheight (Self.bounds)/3)); }}/** * Gaussian picture * * @param originalimage need Gauss

HTML structure: Very simple, just a input, a div, can explain the problem is OK;1, the input box gets the focus when value is "", the value is "default" when the focus is lost;-----This is very good implementation;2, when you enter the content in the input box, click on the div search, the control desk print output to search for the content (of course, the requirements of each project is different, here is just an example), and requires that the click does not affect the input focus and

"Reprinted from Http://www.cocoachina.com/ios/20141223/10731.html"Although iOS has long supported the use of blur effects for processing images, the translucent blur has been widely used, especially after iOS7. Including this year's latest release of IOS8 also follows this design, even in OS X version 10.10 Yosemite also began to use a large number of translucent blur.In iOS development, we have a lot of op

In the PS Fuzzy tool contains three tools--fuzzy tools, sharpening tools, smudge tools, these three tools to the details of the image of the local decoration, the following small series to tell you how they use and the effect. The Fuzzy tool of Photoshop Blur tool: A tool that blurs the image with a brush. It works by reducing the contrast between pixels. Fuzzy tools Task bar for Blur tool:

Reprint: http://www.cocoachina.com/ios/20141223/10731.htmlAlthough iOS has long supported the use of blur effects for processing images, the translucent blur has been widely used, especially after iOS7. Including this year's latest release of IOS8 also follows this design, even in OS X version 10.10 Yosemite also began to use a large number of translucent blur.In iOS development, we have a lot of options fo

In Android, the edge blur effect is implemented by Blurmaskfilter, which defines an edge blur radius and Blur effect (Blur).Blur has four kinds of fuzzy effect, inner, normal, outer, solid, the following respectively describes these effects:1. Blur.inner: The target edge inw

Event Trigger Timefocus: Bubbles are not supported when the focusable element receives focus;focusin: And the focus same, just this event supports bubbling;blur: Bubbles are not supported when the focusable element loses focus;focusout: And the blur same, just this event supports bubbling;Previously thought that all events are support bubbling, can cancel, consulted [MDN on the relevant information] (https:

In the PS Fuzzy tool contains three tools--fuzzy tools, sharpening tools, smudge tools, these three tools to the details of the image of the local decoration, the following small series to tell you how they use and the effect. The Fuzzy tool of Photoshop Blur tool: A tool that blurs the image with a brush. It works by reducing the contrast between pixels. Fuzzy tools Task bar for Blur tool:

size resolution of the picture, it is best to reduce the proportion of the picture, this small rendering efficiency is higher. Implementation of dynamic Blur How to use RenderScript to blur a picture? Don't say much nonsense, first on the core code: public class Blurbitmap {/** * Picture scaling * * Private static final float Bitmap_scale = 0.4f; /** * Maximum ambiguity (between 0.0 and 25.0)/pri

Gaussian blur principle, algorithmReference article: Some knowledge points of image convolution and filtering　　To learn Gaussian blur we first need to know some basic concepts:Basic concepts of linear filtering and convolutionlinear filtering can be said to be the most basic method of image processing, it can allow us to process the image, resulting in a lot of different effects. The practice is simple. Fir

Yesterday read the official document of Renderscript, found that renderscript this fellow is a bit of a kick. Accidentally found Scriptintrinsic this abstract class, some very useful subclasses. One of them is called the Scriptintrinsicblur class, which is basically the image to achieve a Gaussian blur. Scriptintrinsic's statement: Scriptintrinsicblur the declaration of the class: Coupled with a look at the next SDK in the samples, he wrote a G

Gaussian Blur is a two-dimensional convolutional fuzzy operation. In contrast to mean blur, Computing workload increases, but Gaussian Blur can achieve some special effects, especially in Image Noise (non-pretzels Noise) elimination has a very good effect. The one-dimensional Gaussian formula is as follows: X is an integer that specifies the range of [-N, N]. S

] 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; Effect Chart: Take a look at the view

Blur Effects (Blureffect) and shadow Effects (Dropshadoweffect) are two very useful and commonly used two special effects, such as in the development album, you can add a blur to the thumbnail image, in the process of enlarging the photo dynamically change Change the size of the photo and blur the transparency to achieve a magnified transparency effect. I. Fuzzy