JPG, or Joint Photographic Experts Group, is a commonly used image file format that uses lossy compression to reduce the file size while maintaining a good level of image quality.
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Resolution: The term resolution refers to the number of pixels in an image, determining its clarity and sharpness.
Compression: Compression is the process of reducing the size of a digital file by removing unnecessary data without significantly affecting its quality.
Pixelation: Pixelation occurs when individual pixels become visible in an image due to low resolution or excessive enlargement.