What is a high-quality digital photographic image? What are the factors that affect high-quality digital images?

First of all, there are strict requirements for machines. SLR is really a penny for a penny. The more expensive the machine, the more obvious the advantage. First of all, the size and quality of the photosensitive part, the most important part of a digital camera. The larger the photosensitive part, the clearer the image quality (which is also directly related to the lens) and the higher the pixels.