Re: Of picture quality and Mac's and PC's ...

Dennis J. Streveler (
Mon, 24 Jun 1996 09:58:03 -0700

At 10:19 PM 6/19/96 -0400, Alain Caillet wrote:
>I can't help to notice that every time a received frame is
>particularly sharp and well contrasted, the sender is on
>a Mac.
>Since CU image has the same number of pixel and the depth
>of grey shade is the same with signal from Mac's or PC's (4 bits ?),
>what causes the better resolution with images from Mac's
>more so if they use a camera not a Q-Cam ?
>Can anyone offers constructive thoughts on the subject?
>Thanks in advance. Alain
> Alain Caillet <> PowWow <> CuSeeMe
> The validity of a science is ... its ability to predict

Salut, Alain,

There are many factors which go into how the eye perceives the "quality" of
an image. Remember your psychology... there are three "processors" in the
eye that deal with sensation, perception and cognition.

Thus, there are many subtle artifacts in an image which can determine the
overal quality of a picture. The best way to demonstrate these facts is to
play around with Photoshop, or some other image enhancement tool. Try
"sharpening", "edge sharpening" and so on and see how your eye reacts to
these filters.

As for the basic quality of PC vs Mac, hey, I am a Mac fan, so I am
prejudiced. However, seriously, I do not think in this case there is a real
difference between platforms at least in terms of the image quality they are
able to process and transmit.


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