On Sat, 28 Dec 2002 01:35:21 +0100 Iwan Bogels <[EMAIL PROTECTED]> writes: > Hi Ken, > > I'll have a try, but shoot me if I am wrong: > > The number of pixels in a sensor is fixed, as it has a fixed number of > pixels on its X and Y axis. Every pixel senses a color that is converted > into a color code. If the colorcode for every single available color is > similar in size (e.g. the same number of bytes), the size of the > uncompressed file will be linear to the size of the sensor. > > But a JPEG-file compresses an image. Clear blue skies can be compressed much > heavier than a lawn because the lack of color difference in surrounding > pixels. I think that is where the linear connection is broken. > > I may be mistaking, but I think I'm heading in the right direction. Anyone > with a (much) better explaination ? > > Best regards, > Iwan Bogels
I think i understand and agree with you Iwan. Generally, for compressed, detailed images, the relationship between megapixels and megabytes is linear. However, large images with vast areas of solid color will be more effciently compresed than smaller images of the same scene. Dave Herzstein [EMAIL PROTECTED] http://www.kjsl.com/~dave ________________________________________________________________ Sign Up for Juno Platinum Internet Access Today Only $9.95 per month! Visit www.juno.com * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
