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[Octave-bug-tracker] [bug #41673] imwrite problems with jpg and bmp

From: Ian Journeaux
Subject: [Octave-bug-tracker] [bug #41673] imwrite problems with jpg and bmp
Date: Sat, 22 Feb 2014 23:03:16 +0000
User-agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.107 Safari/537.36


                 Summary: imwrite problems with jpg and bmp
                 Project: GNU Octave
            Submitted by: ijourneaux
            Submitted on: Sat 22 Feb 2014 11:03:14 PM GMT
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: Ian Journeaux
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.8.0
        Operating System: Microsoft Windows



if you write out an array using imwrite in bmp and jpg format, the output is
not correct. If you use tif format the ouput looks ok.

I have attahed a smalll sample. test.bmp and test.jpg are corrupt compared to
the input.jpg. The background should be off white. test.bmp has a red
background and test.jpg is dark gray. test.tif appears to be correct.

The problem exists in 3.8.1rc


File Attachments:

Date: Sat 22 Feb 2014 11:03:14 PM GMT  Name: testimwrite.m  Size: 111B   By:



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