On Thu, Jan 25, 2001 at 01:39:13PM +1000, Mick Raynes wrote:
> Can anyone offer us assistance with converting/saving a jpg image as png?
>
> We have around 5000 images which come in at around 150kb each. We are
> hoping to convert the images to png because down the track we are hoping to
> convert them to thumbnails on the fly. The images will only be presented on
> the net (assume browser capability)and it is pretty important that we retain
> colour and shadow integrity. We have limited experience with Gimp however
> we are pretty confident that it will fit the bill and that once we determine
> the process we will be able to batch convert the images. The original jpg's
> are not all in the same format as they are taken with different digital
> cameras with different settings. Our aim would be to reduce the original
> jpg 1000 by 1000 and 120kb (as an eg) to a png 500 by 500 and about 30kb.
> As an example we have posted an original jpg image on the net at
> www.tablelandsonline.net.au/_test/lychee.jpg
If you are looking for a file size reduction, then I don't think the PNG
format will fit your bill. PNG files generally (in my experiance) have
a much large file size than a JPEG. Also, since you source image is already
in JPEG format I don't think you'll see any increase in image quality.
- Tal
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| Tal Danzig | Libranet Linux |
| [EMAIL PROTECTED] | The TOP Desktop! |
| http://tal.thepenismightier.net/ | http://www.libranet.com/ |
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