![]() AXURE RP PRICING HOW TOPixel Hinting Vectors in Photoshop - video tutorial on how to pixel-fit your vector graphics using Photoshop.Pixel-fitting - Dustin Curtis’s Pixel-fitting tutorial and discussion.Source: dcurt.is Using an image editor such as Photoshop, you can zoom into the vector graphic and then manually move its vector paths a bit until they fit perfectly inside the pixel grid before you save the vector as a raster: Pixel-fitting only works for straight lines so you will have to rely on anti-aliasing to display curves. This is called pixel-fitting (or pixel hinting). In order to enhance the quality of the graphic, we can manually edit the pixels to make sure they fit inside the pixel grid. AXURE RP PRICING SOFTWAREWhen we use an image-editing software like Photoshop to automatically convert a vector graphic to a raster graphic, it tries to do its best to smooth out the edges - an automated process referred to as anti-aliasing. However, a problem often occurs when vector graphics are converted into static image formats (raster graphics) such as JPEG or PNG. Simple, non-photographic images such as icons and logos are best created as vector graphics because doing so allows us to scale them to different sizes without fidelity loss. Pixel-fitting is a useful technique for ensuring high-quality results for vector graphics that are converted to raster graphics. Image Posterization - This article discusses the technical aspects of posterization.Most Effective Method to Reduce and Optimize PNG Images - this step-by-step tutorial shows you how to posterize images in Photoshop.Clever PNG Optimization Techniques - this article on Smashing Magazine goes into greater detail on how posterization works and covers other advanced image optimization tricks such as scanline filtering and dirty transparency.Below is the optimized image: Because I was very aggressive with the posterization, the optimized image is only 37.6 KB - a 26.3% decrease in file size. For my example, at a Levels value less than 76, the perceived image quality degradation is no longer acceptable to me.Īfter applying the image adjustment, we then just save the PNG as we normally would. Set the Levels option to the lowest possible value you can get away with. In the Posterize dialog window, check the Preview option to see your edits in real-time. To posterize the image, go to Image > Adjustments > Posterize. I opened the PNG image in Photoshop to posterize it. In this demo, I will use a PNG image from a freebie: The PNG image above is 51.0 KB. Posterization works by converting continuous color gradients into non-continuous segments that require fewer colors to render. Posterization allows us to lower the file size of an image without harming the perceived image quality too much. Here is the optimized image: The optimized image is 58.7 KB - a 3.6% decrease in file size. When then choose a value that’s visually acceptable to us.Īfter applying the Gaussian Blur filter, we then save our image in the normal manner. ![]() We then increase the Radius option until it starts to noticeably reduce the sharpness of the image. ![]() The following image is 60.9 KB: We’ll open the image in Photoshop and then we will apply Filter > Blur > Gaussian Blur. However, if you only introduce a small amount of Gaussian blur to a photo - an amount that doesn’t alter its visual fidelity too much - you can lower its file size. In photo-editing, it’s typically used to enhance a photo’s quality or to give it an interesting visual effect. Gaussian blur softens the details of an image. Here are five techniques for manually optimizing images. However, if you also take the time to manually optimize them, you can further improve your results. You can use automated image optimization tools to compress your images. ![]()
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