gradient

问题 currently i am having much difficulty thinking of a good method of removing the gradient from a image i received. The image is a picture taken by a microscope camera that has a light glare in the middle. The image has a pattern that goes throughout the image. However i am supposed to remove the light glare on the image created by the camera light. Unfortunately due to the nature of the camera it is not possible to take a picture on black background with the light to find the gradient

问题 How can I make this kind of drawable gradient with XML? I can do a simple gradient from color A to color B but i don't know how to combine two gradients in the same drawable. 回答1: I finally found a solution with a layer-list which is good enough for me : <?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <!-- First part is a gradient --> <item android:left="0dp" android:right="0dp"> <shape android:shape="rectangle"> <gradient android

问题 SUMMARY: An SVG sprite contains five icon <symbol> blocks, one of which references its own gradient definition by ID. It is no longer able to find this gradient and render properly. JSFIDDLE: http://jsfiddle.net/Qtq24/1/ I am switching some graphics to SVG, and being that they are icons (in this case for social networking profiles) I'd like to keep them in a sprite (as I had with PNG before). I've followed this guide to SVG sprites on CSS-tricks.com (along with this follow-up which advises

问题 Even though I have asked this question before, I would like to reach out again to clarify what I would like to accomplish with your help. I was wondering how you would create a background of and iOS application in xCode similar to the background of the Solar weather app (screenshots provided) that changes slightly over time (in a cycle). As you can see the gradient is very smooth and obviously contains more than two main points. Any help with example or snippets of code would be greatly

问题 I'm pretty sure this is the code I need to modify, but for some reason I can't get the gradients to disappear in IE. I want them completely gone! .carousel-control { text-shadow: none; opacity: 1; filter: alpha(opacity=100) } .carousel-control.left { background-image: -webkit-gradient(linear, 0 top, 100% top, from(rgba(0,0,0,0.5)), to(rgba(0,0,0,0.0001))); background-image: -webkit-linear-gradient(left, color-stop(rgba(0,0,0,0.5) 0), color-stop(rgba(0,0,0,0.0001) 100%)); background-image:

问题 This question already has answers here : How to Apply Gradient to background view of iOS Swift App (25 answers) Closed last year . used below code for adding gradient layer for a view. After adding gradient layer to a view if i tried to add new subviews inside my gradient view the new view are not getting displayed func setGradientBackground(_ view: UIView ,colorStart:CGColor ,colorEnd:CGColor,cornerRadius:CGFloat) { let gradientLayer = CAGradientLayer() gradientLayer.colors = [colorStart,

问题 I'm trying to animate a CSS gradient as described here but I can't get it to work. As an example I've put together this jsfiddle. As a overview, it seems that CSS transitions on gradients doesn't seem to work. div#Machine { -webkit-transition: background 5s; -moz-transition: background 5s; -ms-transition: background 5s; -o-transition: background 5s; transition: background 5s; background: rgb(71, 234, 46); background: -moz-linear-gradient(top, rgba(71, 234, 46, 1) 0%, rgba(63, 63, 63, 1) 100%)

问题 I have a gradient background and I want, slowly, for it to change colors, basically for it to go through different colors. The color has to blend through all the colors, I do not want it to flick through colors, is this possible? Please enlighten me with a solution, thanks. 回答1: Also consider java.awt.image.MemoryImageSource and a javax.swing.Timer , illustrated here and below. 回答2: Really too hard to say anything (whatever clever) to my defense, (try & enjoy) import java.awt.*; import java

问题 Is it possible to greate a linear gradient which contains all possible RGB colors (only red, green, blue - no alpha values) for a linear color picker. So far I've tried it with the following gradient, but it doesn't contain all values from rgb(0,0,0) to rgb(255,255,255) : var grd = ctx.createLinearGradient(0, 0, width, 0); grd.addColorStop(0, 'red'); grd.addColorStop(1 / 6, 'orange'); grd.addColorStop(2 / 6, 'yellow'); grd.addColorStop(3 / 6, 'green') grd.addColorStop(4 / 6, 'aqua'); grd

问题 Is it possible to greate a linear gradient which contains all possible RGB colors (only red, green, blue - no alpha values) for a linear color picker. So far I've tried it with the following gradient, but it doesn't contain all values from rgb(0,0,0) to rgb(255,255,255) : var grd = ctx.createLinearGradient(0, 0, width, 0); grd.addColorStop(0, 'red'); grd.addColorStop(1 / 6, 'orange'); grd.addColorStop(2 / 6, 'yellow'); grd.addColorStop(3 / 6, 'green') grd.addColorStop(4 / 6, 'aqua'); grd