RE: filmscanners: About 12 or 16 bits

2001-10-28 Thread michael shaffer
Mário writes ... English is not my native language and sometimes I have problems with theexact meaning of the words. we all should learn to read between the lines :o) Putting the question with an example: step 0 (12 bits) = step 0 (16 bits) step 2000 (12 bits) = step 32000 (16 bits)

Re: filmscanners: About 12 or 16 bits

2001-10-28 Thread Mário Teixeira
Teixeira [EMAIL PROTECTED] - Original Message - From: michael shaffer [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Sunday, 28 October, 2001 6:32 AM Subject: RE: filmscanners: About 12 or 16 bits | Mário writes ... | | English is not my native language and sometimes I | have problems

filmscanners: About 12 or 16 bits

2001-10-27 Thread Mário Teixeira
The specifications from my Microtek Artixscan 4000t (the same as the Polaroid Sprintscan 4000 in another box, except for the firmware) state a 36 bits depth. The Microtek scanning software (ScanWizard Pro) allows the choice between RGB 24 and RGB 48 bits. It seems that the maximum resulting

RE: filmscanners: About 12 or 16 bits

2001-10-27 Thread Austin Franklin
I suppose that the white point is converted from step 2^12 in the 12 bits scale to 2^16 in the 16 bit scale and the intermediary steps are just interpolated (without any gain in the image quality). Am I right? Sorry, you're not right. I believe the 12 bit data is raw data with no setpoints

RE: filmscanners: About 12 or 16 bits

2001-10-27 Thread michael shaffer
Austin writes ... I suppose that the white point is converted from step 2^12 in the 12 bits scale to 2^16 in the 16 bit scale and the intermediary steps are just interpolated (without any gain in the image quality). Am I right? Sorry, you're not right. I believe the 12 bit data is raw

Re: filmscanners: About 12 or 16 bits

2001-10-27 Thread RogerMillerPhoto
It's my understanding that there are only two recognized TIF formats, one for 24-bit data and one for 48-bit data. So a scanner that outputs 36-bit data is going to actually give you a 48-bit TIF file, since the data won't fit into the 24-bit format. It would be nice if a standard existed for

Re: filmscanners: About 12 or 16 bits

2001-10-27 Thread Todd Flashner
on 10/27/01 11:41 AM, Austin Franklin wrote: Sorry, you're not right. I believe the 12 bit data is raw data with no setpoints at all...those have to be manually set in PS. The 12 data will be high bit justified in the 16 bit word, and no intermediate values will be interpolated and there

RE: filmscanners: About 12 or 16 bits

2001-10-27 Thread Austin Franklin
I suppose that the white point is converted from step 2^12 in the 12 bits scale to 2^16 in the 16 bit scale and the intermediary steps are just interpolated (without any gain in the image quality). Am I right? Sorry, you're not right. I believe the 12 bit data is raw data with

Re: filmscanners: About 12 or 16 bits

2001-10-27 Thread Mário Teixeira
] - Original Message - From: Austin Franklin [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, 27 October, 2001 4:07 PM Subject: RE: filmscanners: About 12 or 16 bits | |I |suppose that the white point is converted from step 2^12 in | the 12 bits |scale to 2^16 in the 16