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Re: 32 bits in Photoshop?

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Re: 32 bits in Photoshop?

Subject: Re: 32 bits in Photoshop?
From: Chris Cox <email@hidden>
Date: Thu, 14 Apr 2005 18:12:40 -0700

At 12:04 PM -0700 4/14/05, email@hidden wrote:


Date: Thu, 14 Apr 2005 11:13:14 -0700
From: Ray Maxwell <email@hidden>
Subject: Re: 16 bits = 15 bits in Photoshop?

I can't imagine needing 32 bits and know that there is no A/D on earth
that can create digital data to that resolution without most of the
lower bits being noise.

It's not a 32 bit integer - it's a 32 bit floating point value. And there are some imaging devices that can capture it (google "HDR image sensor").

But yes, the low order bits of the mantissa are frequently noise.

Chris
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