I received one photo by e-m and movedt it to IPhoto. The property: 4928 x 3264, 4.1MB, JPEC. to calculate MB I did 4928 x 3264 x 8 x 3 = 386MB
4928, 3264 is number of pixels, 8 is number of bits and 3 is number of channels.
Way it is different: 4.1 & 386
What is wrong??
Next I open the photo in PSE9 and read image size: Pixel dimention W - 4928, H - 3264, (same when above), but file 46M. On my understanding it is 46MB (megabytes)
Also this photo had Document size (I mean it is print size) W 16.426inc and H 19.88inc with resolution 300.
Again diferences in file size.
Who can explain how calculated file?
What Is wrong?
Message was edited by: RAFAEL IZAKOV