![]() ![]() Implementation for the WebP specification, and is available from The standalone libwebp library serves as a reference It can also use a local palette if noĪ WebP file consists of VP8 or VP8L image data, and a containerīased on RIFF. Lossless WebP compression uses already seen image fragments in order toĮxactly reconstruct new pixels. In a block, and then encodes only the difference. PredictiveĬoding uses the values in neighboring blocks of pixels to predict the values Method used by the VP8 video codec to compress keyframes in videos. Lossy WebP compression uses predictive coding to encode an image, the same Which can provide reduced sizes compared to GIF and APNG. Lossy, lossless and transparency are all supported in animated WebP images, Is acceptable, lossy WebP also supports transparency, typically providing ![]() Lossless WebP supports transparency (also known as alpha channel) at aĬost of just 22% additional bytes. Lossy images are 25-34% smaller than comparable JPEG images at equivalent WebP lossless images are 26% smaller in size compared to PNGs. Using WebP, webmasters and webĭevelopers can create smaller, richer images that make the web faster. In this example, we reduced our image size by changing the resolution from 300 to 72ppi and changing the pixel dimensions from 3000 x 2000 to 600 x 400px.WebP is a modern image format that provides superior lossless and Sinc (Lanczos3) - The Lanczos3 method uses the Sinc mathematical function and performs a high quality interpolation.Ħ. Click the "Scale" button to accept the changesĬongratulations! You have now successfully changed the size of your image! Sometimes this method is called “Bicubic”. This usually gives the best result, but it naturally takes more time. What does this mean? Basically, GIMP will discard any unused pixels in order to reduce the image.Ĭubic - The color of each pixel is computed as the average color of the eight closest pixels in the original image. First, we can change the resolution by typing in 72 and then, we can change the pixel dimensions by entering 600 x 400 as the width and height.īefore we finish, we will want to select our resampling method. Let's say that we want to put this image on our website, so we want it to be only 600 x 400 pixels and with a resolution of 72ppi. A Scale Image dialog box will appear like the one pictured belowĤ. Enter new Image Size and Resolution values With GIMP open, go to File > Open and select an imageģ. One may need to reduce the size of an image because the resolution is too high for web, the file size is too large to e-mail, or only a small image is required for a printed piece.ġ. ![]() The process of reducing the size of an image in GIMP is only slightly different than when enlarging. How to Reduce the Size of an Image Using GIMP In this example, we enlarged our image by increasing the image size from 10" x 6.667" to 12" x 8". Sinc (Lanczos3) - The Lanczos3 method uses the Sinc mathematical function and performs a high quality interpolation.Ĭongratulations! You have successfully enlarged an image! ![]() What does this mean? Basically, GIMP will have to create new pixel information in order to enlarge the image.Ĭubic - The color of each pixel is computed as the average color of the eight closest pixels in the original image. In this example, we increased the document width from 10" to 12" and the height from 6.667" to 8". We want to keep the 300 resolution, so all we need to do is type in image size dimensions. Lets say we wanted to enlarge this image to a 12" x 8" so that it can easily be printed and framed. Enter new Image Size or Resolution values A Scale Image dialog box will appear like the one pictured belowĤ. To see the Image Size in inches or a value other than pixels, use the drop down beside the valuesĥ. (Follow along by right-clicking on the tiger image above and saving it!)ģ. Note: When enlarging images, it is recommended to clean up dust and scratches or any noise before enlarging because these items may be magnified in your enlarged image. ![]()
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