mmmm I see no grid pattern in that excellent venus shot. But then I was outside having a smoke, minding my own business, looking at venus and I was seeing diffraction spikes with my naked eyes. Is that normal or am i going blind!?
The images you upload don't get altered. The thumbnails are created dynamically obviously but the image you upload remains unchanged.
When I click on that venus pic Dave, it pops up in a box a bit under half the size of the monitor screen, I distinctly see the 'grid' lines...When I maximize the box, The grid pattern disappears..
hmmm, i think it internet explorer, when i view the original jpeg in photoshop, it is smooth, but in internet explorer, the images is no longer smooth. i am now confused?
yup definately, internet explorer, i pressed on the excellent venus image from the original post (lines could be seen) , it went to a new screen and the lines were more prominent. saved the image (copyright infringed) and opened in photoshop and no lines, just a beautiful smooth curve of the planet.
right that's it.
butler...... get that idiot bill gates on the phone........what do you mean he is in a meeting, just tell him iceinspace is having a problem.......hi bill, thanks for dropping for everything to help iceinspace......old george w......well tell him you will be a little while!!!!!
It looks very similar to a problem I had a while ago. http://www.iceinspace.com.au/forum/a...tachmentid=557
Boiled it down to either a compression problem or electrical interference or too high gain (if bird says it I believe him see http://www.iceinspace.com.au/forum/s...light=jupiter). The image on the right is pre-waveletting in registax. You can already see the tesselation. The one on the right is after waveletting. Admittedly this is an extreme example, but some of the Unwaveletted images didn't show tesselation til after waveletting
What I don't get is how do you guys post such large pics???? eg: Aarons bird!!
When I go to post a pic I save it in PhotoShop as a Jpeg resized down to the limit and sometimes even smaller (500 x 350) and yet often when I try to upload, the window tells me it is too large.
I then resize down to about 300 x 180. And it still won't accept it. That was up until yesterday.
Last night I tried to post a pic, same problem. I kept resizing down past 100 x 60 and it still wouldn't accept it!!!!!!!! So I gave up posting any pics.
Hmmmm...Most of my pics are 800x600 JPGs & then compression is done in my picture publisher program until it's anything under 60K (usually I save the pic @ between 50-59K
When you save an image for uploading in PS Ken, go into file-save for web. This opens a new window with two images. the original on the left and the reduced on the right. Also at the right are some controls for image compression and image size. I select Jpeg (from the top left dropdown box) and tick optimised. If I then take a 3072 x 2024 image reduce the size to around 600 or 800 in its largest dimension in the "image size" tag at the bottom and drop the quality to around 30 - 40% you should have no problems. In the status bar under the reduced image will be its jpeg size. Then just click save and make sure in the save as type line you select "Image"
Once that closes and you go to close the main image, unless you've made changes to it when you opened it and want to save those changes I click "no" when It asks if i want to save changes
Thanks Paul. Sounds like what I was doing but maybe I have been forgetting to do something. I don't remember seeing a quality tab that I can make 30-40% though. I will follow your steps again and see how I go.
I can't see any grid pattern ?
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see 
