Photo by: Dave Jones
Nottingham and Notts Photographic Society

Converting Images for Submssion


Image requirements for submission to the Image Critique Gallery


Size
Landscape images: 900 pixels long side
Portrait images: 768 pixels long side

File Type: Jpeg (Quality 12)

Colour Space: sRGB


 

How to convert a image for submition to the
Image Critique Gallery


IMAGE SPECIFICATIONS

Files should be submitted as JPEG files ( Use quality level 12 when saving the file).

b) Next, adjust the longest side dimensions of the image in pixels. These should be:

For LANDSCAPE ORIENTATED pictures 900 pixels along the LONG SIDE (width) – the height will vary according to how the picture has been cropped.

For PORTRAIT orientated picturesThe height must be a maximum of 768 pixels.
Again the width will vary according to the width/height ratio of the image.
If you are not sure how to do this, see below.


COLOR SPACE
To ensure colour accuracy on the screen, make sure that your pictures are saved in the sRGB colour space. If it has been produced using the Adobe RGB (1998) colour space, change the space to sRGB (see below) and adjust the colours on your screen to taste, before saving it.
(Changing from Adobe RGB (1998) to sRGB can sometimes result in the pictures looking more saturated. You can combat this by lowering the saturation a little in the Hue/Saturation Box). This effect will be more obvious on some pictures more than others.

 

STEP – BY – STEP INSTRUCTIONS FOR SETTING THE FILE SPECIFICATIONS.

These instructions apply to Photoshop CC
1) Open the original image in Photoshop.

2) To protect the original image create a Duplicate to work on.
Go IMAGE MENU> Duplicate. Put a file name in the box which opens.

3) Switch back to the original and close it. (you are now working on the duplicate copy)

Convert to sRGB Profile and flatten
4) Go to the EDIT MENU and click on ‘Convert to Profile’ (near the bottom)

5) In the Convert to Profile you will see a section called Source Space (this is your current workspace profile) Below this you will see a section called Destination Space. If it doesn’t say ‘sRGB’ in the box next to the word Profile – click on the drop down menu and select sRGB there.

6) Click ok – your image is now in sRGB Colour Space.

7) Go to the LAYER MENU and click on Flatten Image (near the bottom). This is necessary to flatten any layers so the image can be saved as a JPEG later.

Change bit depth and dimentions.(Do things in this order).

8) Go to Image/Mode
and select 8 Bits/Channel

9) Go to Image/Image size.

10) In the Image Size dialogue panel, tick the Resample image box.

11) Change the dimensions to pixels.

l12) For a Landscape orientated picture change the WIDTH to read 900 pixels. The HEIGHT will change automatically.
For Portrait orientated images set the HEIGHT to 768 The WIDTH will change automatically.
Make sure that eithe Automatic or Bicubic Sharper is set in the box next to ‘Resample Image’

13) Click OK and the image will reduce in size on the screen as the size and resolution are changed. To see the correct size on the screen, double click the HAND TOOL.

Save the image as a JPEG (Quality 12)


You have now saved a the image ready for submition to the Image Critique Gallery.

If you have any problems, call Derek Doar on 0115 8499686.