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All Color Screen

Banding (Gradient) Test for Monitors

A gradient test, also called a color banding test, helps you check how well your screen shows smooth color transitions. When you run this test, it displays a full range of colors so you can see if your monitor shows them without visible lines or “bands.” It’s a fast way to check if your screen can handle color shifts correctly.

Start the Gradient Tests by clicking the “►” button in the test panel.

Test Pattern
Defective Pixels
Uniformity
Color Distances
Sharpness
Gradients
Gamma
Response Time
The functionality is not available for your screen width. The test can only be performed on a desktop monitor.

Try our online display testing tool.

This is especially useful for people working in graphic design, photography, or video editing—where showing accurate colors really matters. Running a gradient test now and then helps make sure your screen shows images properly, so your work looks right on other screens too.

What Is Display Banding?

gradient test - banding display

Display banding, often referred to as color banding, is a visual artifact that appears on digital screens as distinct bands or stripes of color, which disrupt the smooth transition in gradient images. This phenomenon occurs when the screen’s color depth isn’t sufficient to render a seamless gradation between shades. It’s most noticeable in dark scenes or when a single color fades into another gradually. The main culprits behind display banding include limited color depth, poor compression algorithms, and suboptimal screen calibration.

How to Do a Gradient Test

Tools and Software Needed

To conduct an effective gradient test, you might use a variety of tools ranging from software applications to dedicated websites. Popular choices include color management and calibration software like DisplayCAL or online resources like alcolorscreen.com that provide test patterns specifically designed for banding detection.

Step-by-Step Guide

  1. Setup: Ensure that your monitor settings are reset to default or to a known calibration profile before starting the test.
  2. Choose a Tool: Select a gradient testing tool or software.
  3. Run the Test: Open the gradient test image or pattern. This usually displays a gradient ranging from black to white or through a spectrum of colors.
  4. Observe: Look carefully at the transitions between colors or shades. Note any abrupt changes or bands where the colors do not change smoothly.
  5. Adjust Settings: If banding is noticeable, try adjusting your monitor’s settings, such as brightness, contrast, or color depth. In some cases, changing the screen resolution or updating graphics drivers may also help.
  6. Re-test: After making adjustments, run the test again to see if there is an improvement. Repeat adjustments as necessary until the gradient appears smooth.
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Check the monitor for any malfunctioning pixels. Each pixel should be showing black. If you notice any colored illumination within a pixel, it indicates a subpixel that is persistently lit.
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Verify whether there are any faulty pixels on the monitor. Every pixel ought to display white. If you observe a black pixel, it signifies a pixel that's absent.
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Verify for any malfunctioning pixels on the monitor. Every pixel ought to display in red. The presence of a black pixel signifies the absence of the red subpixel.
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Verify for any faulty pixels on the screen. Each pixel ought to emit a green hue. Should you come across a black pixel, it suggests the absence of the green subpixel.
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Verify for any faulty pixels on the monitor. Every pixel ought to display blue. The presence of a black pixel denotes the absence of a blue subpixel.
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Evaluate the consistency of the image by employing different shades of gray. Ensure that brightness is uniformly dispersed throughout the entire image, with no presence of vibrant hues.
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Evaluate the consistency of the image by employing different shades of gray. Ensure that brightness is uniformly dispersed throughout the entire image, with no presence of vibrant hues.
Tap this screen to open the following screen
Evaluate the consistency of the image by employing different shades of gray. Ensure that brightness is uniformly dispersed throughout the entire image, with no presence of vibrant hues.
Tap this screen to open the following screen
Evaluate the consistency of the image by employing different shades of gray. Ensure that brightness is uniformly dispersed throughout the entire image, with no presence of vibrant hues.
Tap this screen to open the following screen
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Assess your monitor's ability to accurately reproduce similar colors while maintaining their distinction. To do this, create two color patches. The closer the similarity between the two colors, but the more distinguishable they are, the higher the monitor's color resolution. This score is especially useful for comparing the color reproduction capability of two different monitors directly.

Background Color




Figure color




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Lorem ipsum. Test Text.

This assessment enables you to ascertain if your monitor can render text crisply and devoid of any blurring or shadows, irrespective of other factors like text anti-aliasing.

Font size


Inversion

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The gradient should be as smooth as possible, without unnecessary noise or other colors. Check the gradient display with different colors.

Select gradient


Inversion

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Determine the gamma value of your monitor. Use the slider to change the grayscale of the shape so that it blends as much as possible with the background below. The displayed value corresponds to the gamma value of your monitor.

Gamma:
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Select the refresh rate of your monitor, or the frequency you want to work with, and see how smoothly each new block appears.

Speed (per sec):
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