Uploaded photo quality

[fisheye]

In these days, I realized my uploaded images quality were a little bit

different.<br>

(Yeah, I know my photography skill is not enough. Don't hates me)<br>

<br>

So,I uploaded same image to two different websites.<br>

(photo.net and another)<br>

<br>

I compared to two websites image quality.(same image)<br>

Well, the result was that photo.net pictures quality was slightly

different.<p> I don't know the specific reason.<br>

 

Image was resized with Photoshop and compressed with JPEG 100%.

(Save for the web)<br>

But if I uploaded to this website, Image quality was droped like JPEG

70%. It's really wierd.<p>

 

Is it difference of compressing method or parsing(?) method??<br>

<br>

Anyone has any good information about that?<p>

 

Thanks.<p>

 

- Q<p>

[gaius1]

When you upload to photo.net it takes your file and creates 3 files from it, small, medium and large. There has to be a balance between image quality on the one hand and bandwidth and storage on the other, both of which have to be paid for. If you really want to display images at full quality, you'll have to host them on your own bandwidth.

[mark_lapolt___new_haven__c]

Well, I had a similar question, but I answered it through experimentation. I use a standard size for web display (long edge 600 pixels) and one day I uploaded one of those photos. The 'large' size ended up being the 'true' size, ie the 600 pixel long dimension. The 'medium' and 'small' sizes were progressively smaller resamples. I always save my web jpgs at Q=7, so there was no obvious quality impact in the large size image.

 

The other thing I do, is always drop in a touch of USM (not much, just a touch) after resampling in PS. I don't think the photo.net upload engine does the same thing though.

[matt brandon]

My question is why is the color off. I uploaded a shot with nuce colors but they

all seam washed out now. Do I need to saturate them more for the upload

 

Matt