What determines the black pixel threshold percentage and ignore border value for the Blank Page....

lbellipanni

event when creating a Separation Profile.    I have a page where approx the top 1/4 and bottom 1/4 of the page are blank.   When I run it through the default blank page detection paramters in an IP Profile (2% for threshold and .25 for border) the isblank status comes back as true.  I can adjust those parameters and get the isblank status to come back as false.  Regardless of what I do in the image processing profile, when I go to the Separation Profile I have created to remove blank pages it removes it, whether I run the page through Image Processing or Not.

If I set  my ignore border to 1 I get a 0.0240 black pixel threshold which is greater than the default 2%.  When I keep at .25 I get 0.0168 which causes blank to be true.  

The Chuck

In 2.60, the Blank Page Delete Event of Separation is using the default Blank Page Detection IP settings that you described (2% Black Pixel Threshold, .25 Ignore Border Size, and Dpi75 Processing Resolution).  In 2.70, the settings have changed and the offending image works as expected with the default settings.

I'm going to continue troubleshooting this issue in 2.60 and I'll update this thread with my findings.  

RandoCalrisian

Separation profiles, as of now, ignore metadata created via an IP Profile.
Please see the following:
https://xchange.grooper.com/discussion/comment/125#Comment_125
At the time of writing this, Separation profiles did respect metadata from IP Profiles, but that changed shortly after.
The aforementioned article further referenced this article:
https://xchange.grooper.com/discussion/comment/474#Comment_474

"Adding a property to Separation Profiles to allow a threshold of what is considered "blank" is being considered."

I've commented both of these to reflect the current state of Separation Profiles.

rmccutcheon

No, this issue was brought to my attention after 2.60.0106 was published. This fix will be in 2.60.0107.

The Chuck

RandoCalrisian said:

The aforementioned article further referenced this article:
https://xchange.grooper.com/discussion/comment/474#Comment_474

Randall, it's telling me 'comment not found' when I click on this link.  Is that the correct URL?

The Chuck

I've added the ability to specify your own IP Profile when selecting the Blank Page Event.  This will let you tweak it to whatever specifications work best for your document set.

lbellipanni

The Chuck said:

I've added the ability to specify your own IP Profile when selecting the Blank Page Event.  This will let you tweak it to whatever specifications work best for your document set.


Is this in version 2.60.0106