Pure black image 3k

Quick answer：

A 'pure black image 3k' typically refers to a high-resolution image that is completely black, with a resolution of 3,000 pixels in one dimension (either width or height). This could be used in various contexts such as photography, graphic design, or digital art. In photography, such an image might be used for testing or calibration purposes. In graphic design, it could be an element in a composition or simply a background. The term '3k' indicates the image's high resolution.