Upgrade your account to a Community Supporter account and remove most of the site ads.
Rocket your D&D 5E and Level Up: Advanced 5E games into space! Alpha Star Magazine Is Launching... Right Now!

Reply to thread

Message: <blockquote data-quote="ml3" data-source="post: 2212152" data-attributes="member: 12990">image formatsdpi is the number of pixels. The more pixels per inch, the more information the image hold, thus better quality as the dpi goes up.Computer monitors can only display at 72 dpi, so there is no sense in going higher unless you want to enlarge your image without losing quality.Here's the long and the short of it:Print resolution is generally 150 dot per inch and up. Since your monitor canot fit 150 dots in to an inch, it makes the "inches" bigger to accomodate them. That is why higher res images get bigger on your screen. You have to look at both dpi and physical dimensions. Double the dpi and your image dimensions double on screen, etc.Jpg (or jpeg) is used for photo quality images. It handles gradients and color shifts much better than gif. It compresses image size by optimizing colors. While you're eye may not distinguish between two similar shades of blue, your computer can, and rendering both colors takes up memory. Jpgs replace one of those shades with the other. Your eye can't see the difference, the computer only has to render one color instead of two, the file size is smaller and everyone's happy.Gif has far fewer colors available to it than jpg, thus it handles gradients and shading poorly and tends to pixelize. It is better suited to solid color images like non-shaded cartoons, logos, text, etc. It does have tranparency, but it is an on or off proposition. You can't have a pixel 50% transparent, so often gifs tend to have a "fuzz" around them where a transitional color exists between the inner and outer borders. This can be fixed, but it takes a little more effort. You can also animate gifs. My avatar is an animated gif. Had it not been animated, I would have made it a jpg instead.PNGs on the other hand have the color range of jpgs with variable opacity. You can have any number pxels with gradual transparency, so the transitions are smoother. All together it is a superior format but it is still not widely supported, so I tend to stay clear. I'm sure that will change soon enough.BMP is ok for print and internet display, but it is somewhat antiquated and not as good as the alternatives in my oppinion.Tiff is for print. Period. It is intended for high resolution display. It does have the ability to compress images somehwat for screen display that are smaller than a PSD, but the files are still much larger than jpgs.So, for Internet displays, if it has any shading, gradients or color variations, use jpg. If it is solid, primary colors; print or clean black and white, or needs to be animated, try gif.</blockquote>

Verification