Search found 59 matches

by jaffamuffin
2019-10-19T12:47:14-07:00
Forum: Users
Topic: deskew
Replies: 6
Views: 21211

Re: deskew

got it. good point thanks.
by jaffamuffin
2019-10-18T10:04:12-07:00
Forum: Users
Topic: deskew
Replies: 6
Views: 21211

Re: deskew

another way to look at it : file as in first post is 300_01.tif This code supposedly takes a 1000x1000 section from the top middle and bottom of the supplied image and prints the detected skew angle. (test.bat) FOR /F %%B IN ('convert %1 -contrast-stretch 10%%x10%% -gravity center -crop 1000x1000+0+...
by jaffamuffin
2019-10-18T09:07:36-07:00
Forum: Users
Topic: deskew
Replies: 6
Views: 21211

Re: deskew

i'm using version Version: ImageMagick 7.0.7-22 Q8 x64 2018-01-22 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Visual C++: 180040629 Features: Cipher DPC Modules OpenMP Delegates (built-in): bzlib cairo fl...
by jaffamuffin
2019-10-18T07:51:44-07:00
Forum: Users
Topic: deskew
Replies: 6
Views: 21211

deskew

Hi all I'm trying to deskew scanned images but weird things are happening. https://gofile.io/?c=ZgXVTY here is my command FOR /F %%B IN ('convert %1 -gravity center -crop 1000x1000+0+0 -deskew 40%% -format %%[deskew:angle] info:') DO ( SET angle=%%B echo angle %%B ) convert %1 -rotate "%angle%&...
by jaffamuffin
2016-02-11T07:28:42-07:00
Forum: Users
Topic: Mogrify uncompressed tiff to compressed Lzw Tiff - Issues
Replies: 7
Views: 8364

Re: Mogrify uncompressed tiff to compressed Lzw Tiff - Issues

i tested with ImageMagick 6.9.2-5 Q8 x86 2015-10-31 on windows 8.1 mogrify and convert both worked for me. Anyone else ?
by jaffamuffin
2015-10-19T07:35:49-07:00
Forum: Users
Topic: read image once, but save 3 versions
Replies: 4
Views: 5026

Re: read image once, but save 3 versions

Thanks. That is exactly what was needed.
by jaffamuffin
2015-10-15T08:54:11-07:00
Forum: Users
Topic: read image once, but save 3 versions
Replies: 4
Views: 5026

read image once, but save 3 versions

Hi All I come accross this problem in various places, so hopefully I can get an answer on how to do this that I can apply in various ways. This particular problem, I'm converting some images to binary, but sometimes I need to go back and redo one if it didn't convert well enough using a different se...
by jaffamuffin
2015-05-19T06:58:47-07:00
Forum: Users
Topic: TIF to PNG to TIF is not the same input as output
Replies: 6
Views: 6943

Re: TIF to PNG to TIF is not the same input as output

https://www.dropbox.com/sh/p0gjpa7k5x7twzl/AACziip0nPQe_RS1BOu1GdyZa?dl=0 Hi Guys Thanks for your replies. See the above dropbox link for the files. Interesting about the RGB data, I haven't yet had a chance to test any further yet, but the files are there if you want to have a look. The idea was to...
by jaffamuffin
2015-05-04T03:22:47-07:00
Forum: Users
Topic: TIF to PNG to TIF is not the same input as output
Replies: 6
Views: 6943

TIF to PNG to TIF is not the same input as output

Hi All What I expect to be able to do is store an uncompressed TIF as a losslessly compressed PNG, and be able to convert the PNG back to TIF and have the same image as before. But it doesn't seem to be the case. Can anyone explain what is happening and how I may achieve my goal ? Thanks W:\png_tif>...
by jaffamuffin
2015-04-16T09:42:31-07:00
Forum: Users
Topic: distort SRT internal crop example not working for me
Replies: 9
Views: 9220

Re: distort SRT internal crop example not working for me

Hi Fred I haven't you tried your innercrop script. I will test it later on some more challenging images. I'm intrigued with the sunset picture example - can the sensitivity of the the allowance be tolerated ? I'm thinking for a scanned page that maybe has a v rip in the page, I would want to include...
by jaffamuffin
2015-04-16T08:08:55-07:00
Forum: Users
Topic: distort SRT internal crop example not working for me
Replies: 9
Views: 9220

Re: distort SRT internal crop example not working for me

Works nicely indeed. Thanks
by jaffamuffin
2015-04-16T05:51:06-07:00
Forum: Users
Topic: distort SRT internal crop example not working for me
Replies: 9
Views: 9220

Re: distort SRT internal crop example not working for me

OK , so i'm on the right track then. Would be good to clarify this somewhere as I had been puzzling this for a day or 2. But it would be even better if IM could have a built in 'internal crop' command or something. (which i imagine would be a shortcut to this kind of thing anyway, like rotate is)
by jaffamuffin
2015-04-16T05:10:43-07:00
Forum: Users
Topic: distort SRT internal crop example not working for me
Replies: 9
Views: 9220

Re: distort SRT internal crop example not working for me

Hmmm - I swapped sin and cos about so from convert %1 -format "%%[fx:aa=%angle%*pi/180; min(w,h)/(w*abs(sin(aa))+h*abs(cos(aa)))]" info: to convert %1 -format "%%[fx:aa=%angle%*pi/180; min(w,h)/(w*abs(cos(aa))+h*abs(sin(aa)))]" info: and now I think it works! I wonder if this was...
by jaffamuffin
2015-04-16T04:56:47-07:00
Forum: Users
Topic: distort SRT internal crop example not working for me
Replies: 9
Views: 9220

Re: distort SRT internal crop example not working for me

Yes, I got that angle too, i mistyped in my post, now edited. I copied pasted the script from the info page above into my linux bash terminal and substituted the names of my file as below. Same result on my linux box, so ... perhaps the code on the page is wrong ? #!/bin/bash angle=0.783292 ratio=`c...