SO WHAT'S ALL THIS ABOUT MY EYESIGHT?! OK already. This is usually acceptable, unless the image is so small that it just doesn't make sense to interlace the image, and surprisingly enough sometimes interlacing actually decreases the file size on very small images. they do wait a little longer for the finished image. Interlacing typically increases the image size, so although they get a preview. Why not interlace ALL images? Well, as with everything else in life there is always a trade off. Second, as the image fades in, the client can decide whether or not they wish to stick around and see the rest of the image or simply move on. This has a capturing affect on the clients attention. First, they give the client something to look at rather than blank space. Interlaced images may start out blurry, however there are two very distinctive reasons to use them. This has the effect of producing an image that starts off blurry and then comes into focus as opposed to drawing the image from the top down. The first pass skips a certain number of lines, then on consecutive passes the lines which were skipped are filled in.
#TRANSPARENT ANIME IMAGES SERIES#
And for those of you that don't know the difference- Pay close attention because your very EYESIGHT depends on it! Interlacing is a process by which the image is drawn in a series of passes rather than all at the same time. You can find "how to's" for transparent images at:Īn interlaced image is easy to spot compared to a non-interlaced image. For this reason, graphic artists need to attempt to make the background color of the image the same as the background color of the intended page even if they are saving it in transparent format. Some older Browsers cannot distinguish the difference between the GIF87 Non-transparent format and the GIF89a Transparent format and will display the original background color. One problem with Transparent images is that not all Browsers display them properly. Currently the only formats that support transparency are the GIF and PNG formats. Without transparency, the image will have a border around it, but when saved with transparency the image will appear to float right against the page background. This is useful when the background of the page is a different color than the background of the image. This tool is also useful in creating transparent images which are discussed next.Ī transparent image is one whose background allows the page background to display through so the image appears to have no visible border around it. And remember, if you are trying to optimize your site for performance, save each image in both formats and then compare them to determine what is best in your particular case!Īn easy way to do that with a Photoshop compatible filter in Windows95 is to get PhotoImpact's Smart Saver which allows you to actually preview images and sizes before making the final decision. If you are interested in much greater technical detail check out the JPEG FAQ or visit The Graphics Page. All these colors and shades floating around call for the JPEG format. There are many color changes, shadows and even gradations of color on objects.
Rarely is a picture of anything a single color. A good example of this would be a photograph. A continuous tone image has a smooth transition or blend from one color to another. And while GIF's may win out with the non-dithering, fewer color images, JPEG is King for dithered continuous tone images. that's small! By contrast JPEG compression, when there are few colors and no gradations, usually results in images which are larger than their GIF counterparts and appear noticeably degraded.Īs was stated before, each format has it's own particular advantage. In fact, most small web graphics which are saved in GIF format should never exceed 10 kb.
The GIF format is excellent at compressing images that have relatively few colors with no gradations. It might seem that one compression method would always result in smaller file sizes, but that is simply not the case. The usual result of this conversion is a significantly smaller image size. In other words, they take an uncompressed image such as a bitmapped image, and compress them to a smaller file size. The first thing to understand about GIF and JPEG image formats is that they are both compression based formats. The really short and sweet rule to remember is: This question is quite frequently asked by web designers with all levels of experience. For the most part, images do enhance and add to a site when properly utilized, however, when abused they can ruin an otherwise creative and informative site and assure that visitors will not return. Images are one design element that people feel they simply cannot exclude from their Web sites.