Newark & District Photographic Society

Competitions

Digital Projected Images

For Digital Projected Image evenings submissions must conform to the following:

• JPEG only (not RAW, PSD etc.) at the highest quality (giving a typical image size of approx 400-500KB)
• sRGB profile only (see Image Preparation Guide below if you are unsure about this)
• Maximum width of 1024 pixels
• Maximum height of 768 pixels
• Named with a combination of your order of preference and the image title
• Submitted at least one week prior to the competition (except by agreement or where the first night of the season or new year) on a USB pen drive accompanied by, or CD clearly marked with, the following:
  • Author's Name
  • Competition Date
  • Number of images
  • Title List

Image Preparation Guide

The following guide has been written for anyone who is unsure of how to ensure their images are displayed as intended — if you have trouble with this process please approach one of the more experienced digital workers in the Society.

1. Open the image (or a duplicate if you are concerned you may accidentally overwrite the original).

2. Most digital cameras photograph in sRGB although some offer the option to select other profiles (e.g. Adobe RGB 1998)
   If you have the image already tagged as sRGB you can skip this step — otherwise choose one of the following options as appropriate:

   • If you shot in sRGB, or assigned sRGB during RAW processing, but elected not to colour manage: Assign Profile > sRGB
   • If you shot JPEGs in sRGB and have since converted to another profile, or you shot RAW and assigned a profile other than sRGB during processing:
     Convert to Profile:
     • Change the Destination Space to sRGB
     • Set the ENGINE to Adobe(ACE)
     • Set the INTENT to RELATIVE COLORMETRIC

   Colour shifts may occur if you attempt to assign a profile — other than that in which the image was created — to an untagged image or one which has been opened in an environment in which colour management is disabled.

   Untagged images entered will be assumed to be sRGB and may consequently not display as intended.

3. Step 4 may take an unreasonable amount of time and resources with layered files unless you first flatten your image:
   Layers > Flatten Image.

4. Images must be supplied with a maximum Width of 1024 pixels and maximum Height of 768 pixels: Image > Image Size.
   Set both Width and Height unit drop-downs to pixels and make sure Constrain Proportions and Resample Image are selected.

   Document Size will have no effect, as this applies to printed as opposed to on screen output, but a Resolution of 72 pixels/inch set before specifying the Pixel Width and Height dimensions should result in a maximum document size of 352.78mm wide by 246.94mm high which can be used to confirm the other settings are correct.

5. Files must be saved as the highest possible quality JPEGs: File > Save As

   • Select JPEG as the file format
   • Specify a name (starting with your order of preference, in case entries have to be limited, followed by the image title) and location that you can remember for Step 6
   • Set Quality to 12 and select OK to save

6. Repeat steps 1 thru 5 for each image and Copy files to a CD or USB pen drive.