Re-sizing digital images
All digital images for club competitions should be sized to a maximum of 1400x1050 pixels (and optionally set to 300ppi). The examples below show how an individual image can be resized in Photoshop. The dialog boxes may have slightly different options in different versions of Photoshop but the procedure is the same in all versions. Similar options exist in Photoshop Elements and other image editting software will also have equivalent options. The image used in this example starts at 2441x1373 pixels and is re-sized to a width of 1400 pixels.
Re-sizing without a keyline border
- Open the image in Photoshop. If the image has layers, use Layer / Flatten Image from the main menu to flatten the image before re-sizing.
- Select Image / Image Size from the main menu.
- Check the Resample box and select Bicubic Sharper from the drop-down box.
- Ensure that the aspect ratio is constrained so that height changes if width is modified and vice versa. This is the link icon in the dialogue box shown here.
- Set the resolution to 300 pixels/inch. Do this before definie the new width or height.
- Set the width to 1400 pixels or the height to 1050 pixels depending upon the aspect ratio of your image. The second dimension gets set automatically because the aspect ratio is constrained. Make sure that the 1400x1050 limit is not exceeded for either dimension.
- Click on OK to resize the image.
Re-sizing with a keyline border
A single keyline border can be created by re-sizing the image slighty smaller than the final required size, then increasing the canvas size with an appropriate background colour. In this example the image is re-sized to a width of 1396 pixels using the procedure above, then the canvas width and height is increased by a relative amount of 4 pixels. This relative amount is applied evenly left and right and top and bottom. The final width is 1400 pixels.
Another method of producing a keyline is to use the Edit / Stroke option. This method does not change the image size. Instead the keyline is applied onto the existing image and overlays some pixels of the image. The canvas re-sizing method described here preserves all the image pixels and is therefore a better choice.
- Use the "no keyline border" procedure above to re-size the image to a width of 1396 pixels.
- Select Image / Canvas Size from the main menu.
- Check the Relative box.
- Enter values of 4 pixels for width and height.
- Ensure that the anchor position is the central square so that the change is applied evenly around the image.
- Select a colour for the keyline border. White works well for projected digital images in competions as any surrounding area outside the image will be projected black.
- Click on OK to resize the canvas.
Save option for jpeg files
Files should be saved as in JPEG format. The following applies to Photoshop but other software will have similar options. The quality setting in other software may be described differently e.g. 0-100 rather than 0-12.
- Select File / Save As from the main menu.
- Specify the format as JPEG, select a folder and give a filename.
- Click on Save.
- In the JPEG options box (shown below) set the compression level (12=best quality, biggest file).
- Set the format to Baseline Optimized.
- Click on OK.