jsfiddle .blur-bgimage { overflow: hidden; margin: 0; text-align: left; } .blur-bgimage:before { content: “”; position: absolute; width : 100%; height: 100%; background: inherit; z-index: -1; filter : blur(10px); -moz-filter : blur(10px); -webkit-filter: blur(10px); -o-filter : blur(10px); transition : all 2s linear; -moz-transition : all 2s linear; -webkit-transition: all 2s linear; -o-transition : all 2s linear; … Read more
You can create a Gaussian kernel from scratch as noted in MATLAB documentation of fspecial. Please read the Gaussian kernel creation formula in the algorithms part in that page and follow the code below. The code is to create an m-by-n matrix with sigma = 1. m = 5; n = 5; sigma = 1; … Read more
I solved! ffmpeg -i input.mp4 -lavfi ‘[0:v]scale=ih*16/9:-1,boxblur=luma_radius=min(h\,w)/20:luma_power=1:chroma_radius=min(cw\,ch)/20:chroma_power=1[bg];[bg][0:v]overlay=(W-w)/2:(H-h)/2,crop=h=iw*9/16’ -vb 800K output.webm Input: https://www.youtube.com/watch?v=17uHCHfgs60 Output: http://www.youtube.com/watch?v=CgZsDLfzrTs
This should work. I commented in the code to help you understand what’s going on: //To take advantage of CIFilters, you have to import the Core Image framework #import <CoreImage/CoreImage.h> //Get a UIImage from the UIView UIGraphicsBeginImageContext(myView.bounds.size); [myView.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); //Blur the UIImage with a CIFilter CIImage *imageToBlur = [CIImage imageWithCGImage:viewImage.CGImage]; … Read more
If you want to enable unblur, you cannot just add the blur CSS to the body, you need to blur each visible child one level directly under the body and then remove the CSS to unblur. The reason is because of the “Cascade” in CSS, you cannot undo the cascading of the CSS blur effect … Read more
I think this is what you are looking for? If you are looking to add a blur effect to a div element, you can do this directly through CSS Filters– See fiddle: http://jsfiddle.net/ayhj9vb0/ div { -webkit-filter: blur(5px); -moz-filter: blur(5px); -o-filter: blur(5px); -ms-filter: blur(5px); filter: blur(5px); width: 100px; height: 100px; background-color: #ccc; }
When using the blur or opacity property, it is not possible to ignore the child element. If you apply either of those properties to parent element, it will automatically apply to child elements too. There is an alternate solution: create two elements inside your parent div – one div for the background and another div … Read more
Now you can do this without any library using the prop: blurRadius. E.g <Image style={styles.img} resizeMode=”cover” source={imgSrc} blurRadius={1} /> Explanation: the number(1) means the amount of blur you want to apply on the image, the higher the number, the blurrier the image. Unfortunately, this doesn’t work on Android yet (RN 0.40.0). Nevertheless, it could be … Read more
It is possible with CSS3 : #myDiv { -webkit-filter: blur(20px); -moz-filter: blur(20px); -o-filter: blur(20px); -ms-filter: blur(20px); filter: blur(20px); opacity: 0.4; } Example here => jsfiddle
For a more simple and up to date answer: backdrop-filter: blur(6px); Note browser support is not perfect but in most cases a blur would be non essential.