Image resolution is the number of pixels that make up an image. The higher the resolution, the more detailed the image will be. You can check the resolution of an image by opening it in an image editing program, such as Photoshop or GIMP. The resolution will be displayed in the image’s properties.
The resolution of an image is important because it determines the quality of the image. A high-resolution image will be more detailed and clear than a low-resolution image. The resolution of an image is also important for printing. A high-resolution image will print better than a low-resolution image.