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Gradation Expression: Check 2

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Category: General Photography

Checking Your LCD Display Quality - Part Two - Here's the second check you can carry out to check the quality of your LCD display.

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Following on from the first test you can carry out to check the quality of your LCD display, here's the second gradation expression check that uses some slightly different test images. 

Below are colour patterns that use pale colours in the gradations both close to the dark and light ranges. They are arranged so that a distinction cannot be made between adjoining colours on an LCD with insufficient gradation expression.

Again, please view the test images in photo retouching software or a viewer that can reproduce colour accurately. Please don't use your web browser to view the items in as not all browsers can display colours accurately enough.

You'll also need to ensure your LCD display is ready to have the checks performed so please take a look at the 'Getting Started' section of part 1 and follow the instructions.

Colour Pattern Of Gradations Close To The Light Range

In this colour pattern the colours gradually change from near-white pastels to gradations that are even closer to white. The lighter the colours become, the harder it is to distinguish between adjoining colours.

As before, the test images are prepared for three resolution levels (1280 × 800 dots / 1680 × 1050 dots / 1920 × 1200 dots) and you'll need to use the image that has a resolution that matches that of your display. When you find the thumbnail image that matches the resolution of your current display, click on it to open up a larger image you can use. 

Light colour pattern 1280 × 800 dots
1280 × 800 dots
Light colour pattern 1680 × 1050 dots
1680 × 1050 dots
Light colour pattern 1920 × 1200 dots
1920 × 1200 dots

Colour Pattern Of Gradations Close To The Dark Range 

In this colour pattern the lightness and hue gradually change and as the lightness of each colour decreases, the more difficult it becomes to distinguish between adjoining colours. 

Dark colour pattern (1280 × 800 dots)
1280 × 800 dots
Dark colour pattern (1680 × 1050 dots)
1680 × 1050 dots
Dark colour pattern (1920 × 1200 dots)
1920 × 1200 dots

If some parts can't be seen, this could mean that subtle skin tones and colours can't be accurately recognised when carrying out tasks such as retouching photographs. Having said that, the misrecognition will vary according to the user's eyesight. However it's still worth bearing this in-mind when purchasing a new display if accurate colour reproduction is essential for your work. 

In the next tutorial we'll look at a Brightness / chromaticity variation check that can be completed to check the quality of your LCD display. 

Visit the EIZO UK website. 


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