June '22

Issue link:

Contents of this Issue


Page 88 of 104

8 2 G R A P H I C S P R O J U N E 2 0 2 2 G R A PH I C S - PR O.C O M B U S I N E S S S T R A T E G I E S T H E D I G I T A L E Y E BIT DEPTH Another common method of compress- ing les is to limit the number of colors that the image contains. e term used to refer to an image's color potential is bit depth. By limiting the bit depth, the le size of an image can be reduced. Bit depth is commonly reduced when saving les to the web in GIF format so that download times are faster. Of course, the drawback is that the limited colors can produce a grainer image with dull color relation- ships as in Fig. 4. Dithering controls that are found in the GIF interface can help recongure the position of colored pixels so that blending is smoother, and the graininess is mitigated to some de- gree. HOW? Choosing a graphic format depends on how the image will be used. To import an image le into another application, certain programs require specic formats. Some of the older versions of desktop publishing programs support only TIFF, EPS, or PICT for placed images. Later versions are more universal and support many additional formats. Adobe Illus- trator will open TIFF, PICT, or PSD formats as placed images but vector les must be saved in the native (AI) format or as Illustrator EPS to be reopened with the preserved vector data. Most vendors who supply large-format prints prefer attened TIFFs or PDFs. Flattened images are smaller les com- pared to images with layers intact, so Fig. 4: ia on t t a a it pt o proin a rain ia it a ar i ia on t rit a a it pt o it oot tranition an ritr oor

Articles in this issue

view archives of GRAPHICS PRO - June '22