Problems with the Gallery Demo...

[FishIndex]

This gallery image:

The Pups would appear to have certain embedded info (but maybe not preview data) and views OK in IE5.5.

Strange that nobody else has had a problem with this yet. I'll look into stripping EXIF data in thumbnails before the next release though.

[Lizard King]

Originally Posted by mholtum

Took me about 1 second to dl that image dirtectly. Took about 3 seconds to download the actual page with all images. I think it is on your side. Done with both IE 6 and Firefox.

Sama with me

[FishIndex]

Actually, I would be willing to bet that other people have seen this problem and just ascribed it to the browser and left it at that without realizing that it potentially had another contributing root cause. Also, it may not happen when viewing an individual image, in addition to the fact that it may or may not be a legacy browser issue. It may also only happen when the file with embedded data is in a stream of other image data (such as gallery thumbnails).

Also, from a coding standpoint, a consistency check between reported EXIF/JPEG resolutions might be a good idea. They should match, right? If not, then there may be something suspicious with the file (perhaps if not a thumbnail). Some of this logic might also apply to TIFF or other formats, if/when they are supported.

[FishIndex]

Further to my above comments about stripping EXIF data from larger gallery image views in addition to the thumbnails, it seems that is exactly what flickr.com does with its open tagged image sharing engine.

For example:
Single Gallery View Image
Extracted EXIF data -- displayed under "more properties"

However, if you directly download the image:
falls bridge
...you will see that it has no embedded EXIF information.

There must be a reason why they do it...and it's probably for compatibility.

Also, the concepts of open tagging/keywords and shared relevance are very cool and would certainly benefit any gallery product.