What effect does the Gaussian Blur filter have in Photoshop?

The Gaussian Blur filter in Photoshop is primarily used to create a soft blur effect, which smooths out transitions between adjacent colors and tones in an image. This is achieved by applying a mathematical function (the Gaussian function) that averages the colors of the pixels within a specified radius around each pixel. As a result, the overall appearance becomes softer and less defined, making it ideal for tasks such as reducing noise or creating a dreamy background effect. The effect can be adjusted based on the radius chosen, allowing for varying degrees of blurriness.

While other effects like sharpening or adding color may enhance an image, they do not explain the function of the Gaussian Blur filter, which specifically focuses on blurring. Additionally, editing pixel size does not pertain to how the Gaussian Blur operates, as the filter modifies pixel characteristics rather than changing their size. Understanding the Gaussian Blur's role in softening an image is essential for effectively manipulating images in Photoshop.