17 Jan
2012
17 Jan
'12
10:34 a.m.
we were able to locate arrays like this using an autocorrelation function.
In python, which was simple read each page into a binary array. You
would have a sample 1 or 0 shape per what Alexandre suggests as well.
The autocorrelation function matches the shapes essentially. The
coordinates of the corners will be apparent after the correlation. I
believe you could find the 0's with one pass and 1's with a second one.
This will take a long time to run at full resolution, so you'd need to
break it up into small chunks, since correlation time increases
geometrically (I think that is the correct math progression). We were
able to find circles in this fashion on our binary arrays.
Jim
On 1/17/2012 6:05 AM, Alexandre Souza - Listas wrote:
I have a bunch
of PDF files that contain the microcode listings for
an IBM
7201-02 CE (enhanced system/360 model 65), like this one:
http://ibm360-console.wikispaces.com/file/view/QZ001.pdf. I need their
contents for the emulator that drives my '65 control panel.
Unfortunately,
the OCR software I have tries to recognize English words, and makes
gibberish out of them. I'm only interested in the 1's and 0's, so it
would
be wonderful if there was OCR software that you can tell only to look
for
0's and 1's (or have some bias towards recognizing characters as a 1
or 0.
Is anyone here aware of such software, or can anyone recommend a program
that might do a good job with these? I've been copying sections by
hand, but
that gets very tedious when there's 2,816 lines of data, each having
100 0's
and 1's...
Dunno about OCRs, but I believe a simple program can address this.
If the limit is 1 or 0 a simple OCR program can be coded, separing the
chars and looking for the histogram of each char...