Seems that some bad code was added to forum software and images post to whatever sizes. Web browser doing some scaling to final images will always cause images to look awful.
Images in the post are really:
800x542
407x600
800x542
822x944
What Fred Miranda forum software things them to be:
994x674 wrong
674x994 wrong
994x674 wrong
822x994 correct
HTML from page:
<img width=994 height=674 border=0 alt="This image is copyrighted by the owner" src="http://img542.imageshack.us/img542/9300/img5340web.jpg"><br />
<br />
ZE50/2@2<br />
<img width=674 height=994 border=0 alt="This image is copyrighted by the owner" src="http://img39.imageshack.us/img39/559/img5324web.jpg"><br />
<br />
CV125/[email protected] (pretty darn sharp)<br />
<img width=994 height=674 border=0 alt="This image is copyrighted by the owner" src="http://img811.imageshack.us/img811/3045/img5335web.jpg"><br />
<br />
CV125/[email protected] first tree pano (~90MP) that actually worked more or less<br />
<img width=822 height=994 border=0 alt="This image is copyrighted by the owner" src="http://img11.imageshack.us/img11/4879/img5264img5281web.jpg">
In addition to this I have noticed that images with odd number of pixels (pixel size ending to 1, 3, 5, 7 or 9) will always cause scaling as well. For example I have for years done all my web images to 975px on longest side, now for some time Fred Miranda forum started to scale them to 974px, which will ruin how the images look (whole image is scaled and image becomes blurry).
Fred Miranda forum software things them to be, all 3 wrong:
674x994
1218x674
1218x674
Code:
ZE 35 f/5.6, finally a bench shot!<br />
<img width=674 height=994 border=0 alt="This image is copyrighted by the owner" src="http://img441.imageshack.us/img441/7324/img4260web.jpg"><br />
<br />
ZE 50 MP f/11, processing probably a bit over the top.<br />
<img width=1218 height=674 border=0 alt="This image is copyrighted by the owner" src="http://img833.imageshack.us/img833/4582/img43372web.jpg"><br />
<br />
CV 125 f/2.5, usually not too hot on horses, but the light and background were too good to pass up.<br />
<img width=1218 height=674 border=0 alt="This image is copyrighted by the owner" src="http://img19.imageshack.us/img19/5937/img4449web.jpg">
The forum software does not scale images unless they are astronomic huge. I believe the issue you are having has to do with editing/replacing an image. I will look into this though. Give me a couple days because right now, I'm busy with the site migration. I will keep this thread as reference. Thank you.
Fred
Fred Miranda wrote:
The forum software does not scale images unless they are astronomic huge. I believe the issue you are having has to do with editing/replacing an image. I will look into this though. Give me a couple days because right now, I'm busy with the site migration. I will keep this thread as reference. Thank you.
Fred
Thanks for looking into this! The issue is in the part of forum software defining width and height attributes to <img>-tag in HTML-code. Now the software seems to detect pictures wrong (but not all sources e.g. Flickr seems always to be working well, but for example imageshag fails unless post is edited). If you need to find additional examples let me know and I can check if I see some.
At least for my images this is not editing/replacing image in source website; I once reprocessed one image and saved it to same name but it was 2010 or 2009, so the 200+ images I have posted since cannot have issues because editing/replacing image. I of course don't know this for the imageshag images I posted as example since they are not mine.
Samuli Vahonen wrote:
Thanks for looking into this! The issue is in the part of forum software defining width and height attributes to -tag in HTML-code. Now the software seems to detect pictures wrong (but not all sources e.g. Flickr seems always to be working well, but for example imageshag fails unless post is edited). If you need to find additional examples let me know and I can check if I see some.
At least for my images this is not editing/replacing image in source website; I once reprocessed one image and saved it to same name but it was 2010 or 2009, so the 200+ images I have posted since cannot have issues because editing/replacing image. I of course don't know this for the imageshag images I posted as example since they are not mine.
We have a code in place that "records" the original picture dimension. It does not scale or alter it in anyway. It just records it on the database to aid scrolling when viewing at thread with a large number of images. However, once we edit the image, replacing with another with different dimension one there could be an issue. I will definitely check on this. Thanks for posting this. I will keep you updated.
Best,
Fred
Fred, extended my study a little to pinpoint you the code change which did break your forum:
1. went to my own posting history and started going from bottom of first page and it was still working well Apr 17 OK Apr 19 OK Apr 20 OK Apr 22 OK Apr 22 OK Apr 23 OK Apr 23 OK Apr 24 OK Apr 28 OK Apr 29 OK May 03 not OK, 975px images scaled to 974px, looking blurry May 03 not OK, 975px images scaled to 974px, looking blurry May 05 not OK, 975px images scaled to 974px except one photo, which I had posted on 2009/2010/2011 so they sizes were in your database May 05 not OK, 975px images scaled to 974px except few photos, which I had posted on 2009/2010/2011 so they sizes were in your database May 07 not OK, 975px images scaled to 974px, looking blurry
Images posted after this are OK since I realize forum doesn't like 975px size images, but after testing found out that it accepted 972px (974px was not OK since short side was odd, both sides need to have even number of pixels).
So this is caused by something changed in forum code between April 29 and May 03. The photos on all posts were 975px on longest side and same script (ImageMagic & ExifTools) was used to process images and I have not updated the software versions used in my Linux virtual machine doing image processing.
Hope this helps to pinpoint the change on forum code or software used in forum server.
Hmmm, seems that there are no longer height and width tags in HTML but they are created dynamically with Javascript. I'll need to take closer look to this at home, based on how image appears it doesn't appear to be losing sharpness, but this laptop display is really really poor.
