![]() ![]() Since you have not given any information on your requirements (what kind of image you have, where you got it, and what you need it for), it is hard to come up with specific advice. GIF compresses solid blocks of color extremely well - but does less well on dithered or noisy images (such as you might get from converting a 24-bpp image to GIF format). If a full-resolution GIF is mandatory for your application, you may be able to generate an image that is more compressible by the GIF format.If you can't generate a smaller image to start with, image resizing typically works well on photo-like images, and there are nonlinear resizing filters available that are specifically intended to handle line art. As mentioned in a comment, you can try reducing the resolution of your image, and shipping the reduced version.Also, (although your question explicitly rejects it) PNG may be a reasonable option, as it (losslessly) supports 24-bpp images. Note that JPEG works well on photo-like images, but not so well on line art. You can choose a lossy format (such as JPEG), which will allow much greater compression.There are a number of things you can do to reduce the size of your image file: So, although the GIF format itself is lossless, the image processing required to use it in the first place may be lossy. If your source image is a full 24 bits, it must be dithered to fit into a 256-entry color palette. ![]() ![]() GIF is a lossless image compression format: it is set up to reproduce the image exactly.Īs a consequence, there is no "image quality" slider (as in JPEG encoders) although a GIF will likely be much smaller than an uncompressed format (such as many camera RAW or common TIFF options), there is a limit to how far it can go.Īlso, you should know that GIF is limited to 8 bits per pixel (so it is most appropriate for line art, not photo-like images). ![]()
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