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enrightd
Posts: 1034
Joined: 12/5/2001
From: Rock Hill SC USA
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Photo Sizing - 9/27/2004 16:14:38
I received a photo as an attachment to an email.
I wanted to use it in a newsletter.
When I opened it in MS Photo Editor it was 8" x 6" (approx).
I resized the photo to 3" x 2" (approx).
I saved it.
I looked at it in Windows Explorer and it was 700,000 bytes.
How do I get this down to 10kb to 20kb?
What is the relationship between Photo size (Pixels) and File size (Bytes).
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Dan
I wonder how much deeper the ocean would be without sponges
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Giomanach
Posts: 6128
Joined: 11/19/2003
From: England
Status: offline
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RE: Photo Sizing - 9/27/2004 16:26:37
quote:
How do I get this down to 10kb to 20kb?
Using PSP, PS or FW? M$ Photo Editor can't optimise files. It can only resize etc. To knock the file size down, you have to optimise. Post a link to it and I can optimise it for you.
Relationship between Pixels and Bytes? Umm...I think it's more color depth + dimensions = file size rather than size on its own
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enrightd
Posts: 1034
Joined: 12/5/2001
From: Rock Hill SC USA
Status: offline
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RE: Photo Sizing - 9/27/2004 17:02:58
I don't need it resized.
It already went to press.
My question was for future reference and education.
Thanks for your response.
I got the education.
Now I need to get the software.
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Thanks,
Dan
I wonder how much deeper the ocean would be without sponges
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enrightd
Posts: 1034
Joined: 12/5/2001
From: Rock Hill SC USA
Status: offline
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RE: Photo Sizing - 9/28/2004 11:16:03
Thanks Bobby. Gimp looks interesting.
The Screenshots are in German. But I'll try anyway.
I'm at work right now. I'll install tonight at home.
What is PSP, PS, FW anyway?
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Dan
I wonder how much deeper the ocean would be without sponges
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Nancy
Posts: 3626
Joined: 11/9/1999
From: Nebraska
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RE: Photo Sizing - 9/28/2004 12:34:58
Here's another that might be helpful.
http://www.irfanview.com/
It used to be a free download. I didn't check around their site long enough to know if it still is, but I think so.
Nancy
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enrightd
Posts: 1034
Joined: 12/5/2001
From: Rock Hill SC USA
Status: offline
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RE: Photo Sizing - 9/29/2004 10:41:19
Thanks Nancy.
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Dan
I wonder how much deeper the ocean would be without sponges
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Nib
Posts: 127
Joined: 9/28/2003
Status: offline
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RE: Photo Sizing - 9/29/2004 17:18:34
Xn view is another good image viewer. i havent really played with it yet, i still use ACDsee. but Xn view is free. pretty sure Xn view is quite similar to ACDsee from what i saw on my bro's pc.
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Nigel
Posts: 383
Joined: 7/24/2002
From: Wirral - UK
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RE: Photo Sizing - 10/13/2004 12:04:46
Lots of good references to programs here but maybe not an answer to your question.
If you take an image in any format - bmp,jpg,gif,psd,png etc etc the file size (bytes) will reduce as the photo size (pixel count)reduces.
There are usually 2 stages in reducing the file size of an image:
1. resizing
2. optimising
The first you have already done once. Its best to save your resized image as a seperate file and keep the original in case you need to go back to it later.
Optimising an image uses compression anf for photos this usually means saving the image as a jpg. PaintshopPro and Photoshop have an option called 'save for web' which gives you control of the amount of compresion used. The more it's compressed the smaller the file size.
A word of warning - too much compression spoils an image and leads to artifacts in the image (those blurry bits that aren't quite clear)
As a general rule of thumb don't recompress a jpg as multiple compressions spoil the quality. Take your original image and save it in non lossy format - bmp,tiff,psd etc. Resize the image, sharpen it then save it as a jpg with about 50% compression or the middle setting in whatever program you are using.
Nigel
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dpf
Posts: 7126
Joined: 11/12/2003
From: India-napolis
Status: offline
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RE: Photo Sizing - 10/13/2004 12:31:12
quote:
As a general rule of thumb don't recompress a jpg as multiple compressions spoil the quality. Take your original image and save it in non lossy format - bmp,tiff,psd etc. Resize the image, sharpen it then save it as a jpg with about 50% compression or the middle setting in whatever program you are using.
thats excellent advice, often neglected with disasterous results.
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Dan
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