Account Options

  1. Sign in
The old Google Groups will be going away soon, but your browser is incompatible with the new version.
Google Groups Home
« Groups Home
NOTICE: Calibration Fixes
There are currently too many topics in this group that display first. To make this topic appear first, remove this option from another topic.
There was an error processing your request. Please try again.
flag
  1 message - Collapse all  -  Translate all to Translated (View all originals)
The group you are posting to is a Usenet group. Messages posted to this group will make your email address visible to anyone on the Internet.
Your reply message has not been sent.
Your post was successful
 
From:
To:
Cc:
Followup To:
Add Cc | Add Followup-to | Edit Subject
Subject:
Validation:
For verification purposes please type the characters you see in the picture below or the numbers you hear by clicking the accessibility icon. Listen and type the numbers you hear
 
Richard Hughes  
View profile  
 More options Feb 8, 1:06 pm
From: Richard Hughes <hughsi...@gmail.com>
Date: Wed, 8 Feb 2012 18:06:25 +0000
Local: Wed, Feb 8 2012 1:06 pm
Subject: NOTICE: Calibration Fixes
Hi all,

I spent last night making a calibration program to ensure that each of
the new batch of ColorHugs passes a QA test.

As an exercise, I imported all the ti3 data from serial numbers 0 to
49 and was surprised to see that several of the devices differed from
what the new QA tool would accept. Looking at this raw data some more,
it appears that a few black readings were off by several orders of
magnitude in the ti3 files. This is fixed in firmware since 1.1.2, but
the original ti3 files were used to generate the ccmx factory
calibration data shipped on the device itself.
I've removed the invalid black readings in the affected ti3 files and
regenerated the ccmx calibration matrices for the affected devices.

So, what do you need to do:

* Find out the ColorHug serial number by doing "/usr/libexec/colorhug
get-serial-number"
* If your serial number is one of
 - 000007
 - 000009
 - 000010
 - 000018
 - 000020
 - 000025
 - 000036
... then you need to run "colorhug-ccmx --repair" on the new LiveCD
and then just click 'Repair'. The new calibration data should all be
automatically downloaded and applied to the device.
Other serial numbers are not affected, and no repair is required.

If the device still doesn't work as you think it should, then please
email me offlist and I'll make sure that the pre-scale and post-scale
are also both correct.

Thanks and apologies for the inconvenience,

Richard.


 
You must Sign in before you can post messages.
To post a message you must first join this group.
Please update your nickname on the subscription settings page before posting.
You do not have the permission required to post.
End of messages
« Back to Discussions « Newer topic     Older topic »