Mogrify, Internet Explorer and GIF images
Posted: 2010-04-09T07:40:52-07:00
Hi all,
I used Mogrify to convert a set of several hundred TIFF images into GIF for publication to a web site. The images converted without error, conform to the GIF spec (according to JHOVE) and can be viewed in Firefox, Photoshop and every image viewer/editor I can find. However, when I began browser testing I discovered that the images are not displayed in Internet Explorer - the generated GIF images fail to display when referenced on the web page and when directly loaded into IE (i.e. a local copy of the file is dropped onto the IE window).
I've spent the last day looking for the cause of the problem and noticed a few mailing list/forum posts that seems to imply that this is a long-standing issue with ImageMagick (relatively long anyway, the ML posts were from 2006). Has anyone on this forum encountered the GIF IE problem? If so, are you aware of any way that the GIF images can be corrected so that they display in IE?
I've tested the images on several machines with different versions of IE (5,6,7) and the problem is the same. I'm able to view other GIF images and have examined the registry settings, but there doesn't seem to be a problem with IE's handling of GIF images. Frustratingly, I'm not able to access the original TIFF images at the moment to recreate the GIFs. I initially thought there was an image encoding problem with the GIF images and tried to correct the errors by re-creating the image. I've written various GIF images to new files, and have tried to convert the GIF images to TIFF and re-encoding the resultant TIFF to GIF again (using ImageMagick Convert, Mogrify, Photoshop and PaintShop Pro). Although all of the resultant GIFs can be viewed in the paint apps and Firefox, the resultant GIFs refuse to display in IE.
Thanks for any help
I used Mogrify to convert a set of several hundred TIFF images into GIF for publication to a web site. The images converted without error, conform to the GIF spec (according to JHOVE) and can be viewed in Firefox, Photoshop and every image viewer/editor I can find. However, when I began browser testing I discovered that the images are not displayed in Internet Explorer - the generated GIF images fail to display when referenced on the web page and when directly loaded into IE (i.e. a local copy of the file is dropped onto the IE window).
I've spent the last day looking for the cause of the problem and noticed a few mailing list/forum posts that seems to imply that this is a long-standing issue with ImageMagick (relatively long anyway, the ML posts were from 2006). Has anyone on this forum encountered the GIF IE problem? If so, are you aware of any way that the GIF images can be corrected so that they display in IE?
I've tested the images on several machines with different versions of IE (5,6,7) and the problem is the same. I'm able to view other GIF images and have examined the registry settings, but there doesn't seem to be a problem with IE's handling of GIF images. Frustratingly, I'm not able to access the original TIFF images at the moment to recreate the GIFs. I initially thought there was an image encoding problem with the GIF images and tried to correct the errors by re-creating the image. I've written various GIF images to new files, and have tried to convert the GIF images to TIFF and re-encoding the resultant TIFF to GIF again (using ImageMagick Convert, Mogrify, Photoshop and PaintShop Pro). Although all of the resultant GIFs can be viewed in the paint apps and Firefox, the resultant GIFs refuse to display in IE.
Thanks for any help