You can achieve a transparent cut out circle with 2 different techniques : 1.SVG The following examples use an inline svg. The first snippet uses the mask element to cut out the transparent circle and the second hollow circle is made with a path element. The circle is made with 2 arc commands : With … Read more
Just create a new BufferedImage with transparency, then paint the other two images (with full or semi-transparency) on it. This is how it will look like: Sample code (images are called ‘image.png’ and ‘overlay.png’): File path = … // base path of the images // load source images BufferedImage image = ImageIO.read(new File(path, “image.png”)); BufferedImage … Read more
After spending some reputation on a unsuccessful bounty to get some help on this issue, I finally realized how complex was the problem I was interested in. The few individuals that have accomplished this task don’t share much. During my research I found different ways to achieve what I was looking for. One of the … Read more
imagealphablending( $targetImage, false ); imagesavealpha( $targetImage, true ); did it for me. Thanks ceejayoz. note, the target image needs the alpha settings, not the source image. Edit: full replacement code. See also answers below and their comments. This is not guaranteed to be be perfect in any way, but did achieve my needs at the … Read more
You can use “transparent” as a colour. In some versions of IE, that comes up as black, but I’ve not tested it out since the IE6 days. http://www.researchkitchen.de/blog/archives/css-bordercolor-transparent.php
From the apple developer website after a quick search: Avoid transparency. An app icon should be opaque. If the icon’s boundaries are smaller than the recommended sizes—or you use transparency to create “see-through” areas—the resulting icon can appear to float on a black background, which tends to look especially unattractive on the beautiful wallpapers that … Read more
From this answer [self.navigationController.navigationBar setBackgroundImage:[UIImage new] forBarMetrics:UIBarMetricsDefault]; self.navigationController.navigationBar.shadowImage = [UIImage new]; self.navigationController.navigationBar.translucent = YES; self.navigationController.view.backgroundColor = [UIColor clearColor]; self.navigationController.navigationBar.backgroundColor = [UIColor clearColor]; Also, as suggested by Josh in the comments, to put the bar back to default: [self.navigationController.navigationBar setBackgroundImage:nil forBarMetrics:UIBarMetricsDefault];
You were on the right track. IrfanView sets the background for transparency the same as the viewing color around the image. You just need to re-open the image with IrfanView after changing the view color to white. To change the viewing color in Irfanview go to: Options > Properties/Settings > Viewing > Main window color
Try this <Button BorderThickness=”0″ Style=”{StaticResource {x:Static ToolBar.ButtonStyleKey}}” >…
Building on Jeff’s answer, your first step would be to create a canvas representation of your PNG. The following creates an off-screen canvas that is the same width and height as your image and has the image drawn on it. var img = document.getElementById(‘my-image’); var canvas = document.createElement(‘canvas’); canvas.width = img.width; canvas.height = img.height; canvas.getContext(‘2d’).drawImage(img, … Read more