Hints, Tips and Recommendations:
Test Images

A Series of Test Images

After your screen is calibrated, you might also want to determine how well your system is performing by viewing a series of test images.

Grainger Rainbow sRGB

The sRGB Rainbow test image above has a central white band. The upper boundary of the middle white band throughout the colour range should have a very small (1 grey-level)  difference in colour from the base of the upper gradients. If you see large sharp discontinuities within the colour gradients your screen has a colour calibration problem. Right-click the image and open in a new tab to see a larger and more usable version.

Colour Test Image

The top left panel of the test image below was produced by Photodisc, now owned by Getty Images, and has a freeware licence. (PDI Freeware licence). The rest was produced by Steve.

New members can borrow a properly printed version of the sRGB colour space image above from Steve that can be used to approximately verify screen calibration and printer performance.

When examining the image above be careful to look in a direction perpendicular to the screen, especially when using laptops or any desktop screen that has a very narrow optimum viewing angle.  The print of the above should be illuminated by daylight.


Steve’s Test Images

Steve’s sRGB  greyscale test images below provide a rigorous test since proper viewing of them requires a good calibration (and a good screen). Some parts of the greyscale images shown below are only one grey level apart so if you can see all of the differences then you monitor is very well set up throughout the brightness range of 0 to 255. None of the greyscale images below should show any faint colouration if your screen is well calibrated.

In order to carry out proper testing, you will need to see much large versions of the images below.  Click on each image to view them at a bigger size on your screen. 

 

Click on the image above to open in it at full size in a new tab
Click on the image above to open in it at full size in a new bowser tab
Click on the image above to open in it at full size in a new bowser tab
Click on the image above to open in it at full size in a new bowser tab
Click on the image above to open in it at full size in a new bowser tab
Click on the image above to open in it at full size in a new bowser tab

Tips and images by: Steve Campbell

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