The way I used to demonstrate the difference between 8 and 16 bit
color depth to students was to display a photo on a monitor, and
switch between 16K colors (8 bit) and millions of colors (16 bit).
I'd ask them to guess which was which. No one could tell the
higher vs. lower color depth.
I would t
image when opened in an imaging program such as
Photoshop?
Your answer seems to confirm that.
William Robb
- Original Message -
From: "Mike Ignatiev"
Subject: Re[2]: JPEG Question
The "reduced" algorithm, from the FAQ is fairly simple:
1. Transform the image into a suit
, it's like the Zone system with
higher math) image when opened in an imaging program such as
Photoshop?
Your answer seems to confirm that.
William Robb
- Original Message -
From: "Mike Ignatiev"
Subject: Re[2]: JPEG Question
> The "reduced" algorithm, f
Mike Ignatiev wrote:
Basically, the 3rd step is where the "pixel" come into play. In theory,
one can write a codec for an arbitrary color depth. In practice, I am yet
to see one. Since all "observable" codecs work on 24 bit color, there's
a good reason to think of JPEG as 24 bit format (if you wan
k, anyway).
BTW, zipped 24 bit tiff would be still a 24 bit format, although
the concept of "bits per channel" just doesn't exist inside a
zip file :)
Mishka
-Original Message-
From: Steve Jolly <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Date: Fri, 19 Mar 2004 16:14:26 +
- Original Message -
From: "William Robb" <[EMAIL PROTECTED]>
>
> My question however is, since it is still 8 bit per colour, is the
> Jpeg file still really limited in fine colour delineation because it
> is limited to 256 discreet shades per primary colour?
In one word; yes.
Jostein
it mode, and convert to JPEG
only when I am absolutely happy with the final result.
Best,
Mishka
-Original Message-
From: "William Robb" <[EMAIL PROTECTED]>
To: "Pentax Discuss" <[EMAIL PROTECTED]>
Date: Fri, 19 Mar 2004 08:44:11 -0600
Subject: JPEG Questi
I am still trying to get my head around the JPEG colour depth thing.
Anders (I believe) mentioned that a Jpeg is 8 bit per colour, for a
total of 24 bit colour.
I can do the math, and can see that this should be very good colour
depth (256x256x256=16777216).
My question however is, since it is s
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