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Old 10-22-2019, 01:21 AM
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Glen,

You might want to try some of the different tools to save file space that are in various photo editing software packages. They will sometimes give you the ability to limit the color palette to 256 colors (or even less) which usually (not always) will not reduce the quality of the image on a web page. The option basically limits the color pixel depth to say 5 bits down from 32 / 16 / or 8. If your editor has this feature it will substantially reduce the size of your pic files.

Of course a 4 x 3 picture format will represent a 288 x 216 pixel image or 62,208 individual pixels at 72 dpi. At a color depth of 5 pixels that is 311,040 bits or a picture of ~38KB. The same image with 24 bit color wold be 1.49 megabits or 186 KB. Size and color depth are either your friend or enemy. Website pics rarely benefit from more than about 5 bits of color depth per pixel.


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