How do i re size my photos.

[Gary72]

all the pictures i have taken with my camera are approx 5436 x 3489 !! how do i re-size them so i can upload them any help appreciated

 

[Brian G]

I assume you are talking about jpg images?

For resizing jpg I've found FastStone Photo Resizer very useful.
You can specify the exact size of output, and it does batch processing.
It's also free!
Download link from here:
http://www.faststone.org/index.htm

If they are raw files then you should be able to resize them before you save the processed jpg.
You cannot change the size of the raw file itself.

 

[Gary72]

Thanks Brian have downloaded it. Now whats the best size to save as to up load on here. Regards Gary

 

[Brian G]

Thanks Brian have downloaded it. Now whats the best size to save as to up load on here. Regards Gary

That's a little difficult to answer.
There's a 200KB file size limit on the TP galleries, which is a bit restrictive, so you might need to do a bit of trial and error.
Resize and check the file size. If it's too large the site won't allow you to upload.
You can either have a large image with a lot of jpg compression or a smaller, higher resolution image with less compression.
At a guess, somewhere between 800 & 1200 pixels along the longest side may be about where you need to be, but the ultimate file size depends to some degree on the image content.
When FS Resizer has finished it lists all the files, along with their size, so you can check before trying to upload.

I think a lot of people host their images on Flikr or Image Shack and link to them from here.
I've got a couple of images hosted here but most of what I've used are on Image Shack, and linked to from this site.

 

[cargo]

I used to use some free software but some where along the way stopped prob's when I got a new pc.
I use photoshop as I only upload a few images at a time to the forums as and when I take anything that I like and want some help/feedback on.
Not sure if you have photoshop though.
If so. Steps are.

1. Image tab at top_Drop down to image size. Tick resample_ enter 800 pixels on longest side.Click ok.

2. As above Image tab again_drop down to image size. Untick resample. Enter 96 in resolution box.Click ok.

3 Click file at top left. Then save as choose jpeg and rename your file EG: Sunset forum size etc ,etc, etc.

I then upload and host here.

http://postimage.org/

Sounds hard work but you get used to it.
I have recorded an action for this but seldom run it.

Gaz

 

[droj]

1. ensure image is sRGB
2. crop (tool) whole image to 800px wide (if landscape format) - image height px will self-select (dpi is totally irrelevant for screen viewing)
3. if your software allows, then 'save for web' - this will show compression options and resultant file sizes.
4. upload.

 

[cargo]

1. ensure image is sRGB
2. crop (tool) whole image to 800px wide (if landscape format) - image height px will self-select (dpi is totally irrelevant for screen viewing)
3. if your software allows, then 'save for web' - this will show compression options and resultant file sizes.
4. upload.

Well thats quicker for sure. Thanks

I had to do it my way because our camera club rules state a pixel dimension and a certain dpi so all competition entries are equal.

Thanks again.

Gaz

 

[Brian G]

Well thats quicker for sure. Thanks

I had to do it my way because our camera club rules state a pixel dimension and a certain dpi so all competition entries are equal.

Quoting dpi for a projected image is pointless, all you need is the pixel dimensions.
For our club we use 1400 wide and 1050 high maximum for our projected images.
For club competitions prints can be any dpi you want, it's the maximum print size (actually the mount size) that is important.

It appears to me that dpi is one of the least understood aspects of digital imaging, which is not helped by the way it is handled by some imaging software.
dpi is only relevant for printing, and most commercial printers will control this themselves, send them your image file and tell them what size you want it and they will calculate the dpi.
If you are printing at home, your printer driver should take care of the sizing.

 

[cargo]

Quoting dpi for a projected image is pointless, all you need is the pixel dimensions.
For our club we use 1400 wide and 1050 high maximum for our projected images.
For club competitions prints can be any dpi you want, it's the maximum print size (actually the mount size) that is important.

It appears to me that dpi is one of the least understood aspects of digital imaging, which is not helped by the way it is handled by some imaging software.
dpi is only relevant for printing, and most commercial printers will control this themselves, send them your image file and tell them what size you want it and they will calculate the dpi.
If you are printing at home, your printer driver should take care of the sizing.

Hi Brian.
Yes our club is the same I guess it is the L&CPU rules. (I just looked that up on our web page)
When I first joined the club they had a youtube video explaining how to resize which did ask you to alter the dpi to 96. They have recently added a pdf on the club website which does not say you have to alter the dpi.
So I take your word for it that it makes no difference to projected images..
I don't print at home but use dscl which ask for images to be @ 300dpi. My images are inported from Canon Dpp at 350 dpi so I usually resize to 300. but after reading your post me thinks I should leave it alone.

Thanks

Gaz

 

[DorsetDude]

Gary, if you edit your photos in photoshop elements you can resize from in there as well.
Image->Resize->Image size (ctrl-alt-I).

Make sure scale styles, constrain proportions and resample image is ticked, select Bicubic(best for smooth gradients) and then tweak your width (landscape format) or height (portrait format) to what you want, 800, 1024 e.g.

You can then do 'save as..' jpg and, after you give the filename, a jpeg options dialog will pop up to give you an idea of file size before you save and you can adjust image quality to get it as near to 200k as poss without going over.

 

[Brian G]

Hi Brian.

I don't print at home but use dscl which ask for images to be @ 300dpi. My images are inported from Canon Dpp at 350 dpi so I usually resize to 300. but after reading your post me thinks I should leave it alone.

Thanks

Gaz

I took four files to my print company for some 12 x 16 inch prints.
The guy said "Let me just check them on my computer."
3 of the 4 came out over 300 dpi, but one, a crop from an older, lower resolution camera, only showed a resolution of just over 150 dpi at the target size.
He said "That should be OK but it may not look as sharp as the others."
I went ahead with the prints and when I saw the results, you have to look really close to see any difference between the 150 dpi and the others, certainly much closer than a normal viewing distance.

 

[cargo]

Thanks for the info Brian.

Gaz