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#apertus IRC Channel Logs

2013/12/11

Timezone: UTC


00:03
dmj_nova
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02:47
jucar
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03:32
jucar
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05:34
Bertl
night everyone!
08:55
S3bastian
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08:57
S3bastian
good morning
09:43
Bertl
morning everyone!
10:00
Bertl
troy_s: new raw images (from the 'perfect' sensor) can be found under http://vserver.13thfloor.at/Stuff/AXIOM/RAW/
10:02
Bertl
They are all starting with 'scene', those with _c in the name feature the IT8 chart in a non-reflective position within that scene
10:03
Bertl
lowlight means diffuse/ambient tungsten lighting, while halogen means two halogen spots, one from each side
10:03
S3bastian
Bertl: I want to summarize the raw16 file specifications on the wiki, its 16 bit monochrome starting from top/left, right? any header? are the sensor registers embedded at the end?
10:05
Bertl
no header, big endian, 16bit (12msb padded with 4lsb zeroes)
10:06
Bertl
starting at the top left, with 3072 rows of 4096 columns
10:06
Bertl
the data is in bayer pattern RG/GB and has the register dump appended
10:08
S3bastian
thanks
10:10
S3bastian
and the appended registers are 128x32bit (though their are 16bit) right?
10:10
Bertl
128 x 16bit, big endian as well
10:11
S3bastian
ok
10:13
Bertl
the 32bit memory layout is not really relevant, if I had known that it would confuse the hell out of so many people, I wouldn't have picked it
10:13
Bertl
for all practical purposes it just means that you multiple the register index by 4 instead of 2 when reading or writing the registers directly to the SPI memory locations
10:14
S3bastian
https://wiki.apertus.org/index.php?title=RAW16
10:15
Bertl
byte oder Mac vs IBM PC is heavy and mostly wrong
10:15
Bertl
btw, you probably want to select Mac there, despite the fact that all new Macs use little endian
10:16
Bertl
intel is little endian, power PC was traditionally big endian, and arm is both
10:19
S3bastian
if I select mac the image is only noise
10:19
S3bastian
if I select IBM I see the color chart
10:20
Bertl
okay, then it is just completely wrong I guess :)
10:21
Bertl
(or we are not writing big endian, let me check that)
10:23
Bertl
no, we are big endian :) very strange, PCs never used big endian
10:48
Bertl
but probably as photoshop was Mac first, IBM PC just means 'swap'
11:06
sasha_c
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11:24
horst
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11:25
Bertl
wb sasha_c! wb horst!
11:25
sasha_c
thanks Bertl :)
11:26
horst
Hi.
11:43
jucar
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jucar
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horst
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sasha_c
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S3bastian
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15:58
Bertl
off for a nap ... bbl
17:18
se6astian
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17:23
se6astian
testing: < > &&%$§, just ignore these lines
17:40
jucar
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20:08
jucar
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20:56
Bertl
back now ...
22:26
se6astian
time for bed
22:26
se6astian
good night!
22:26
se6astian
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