What is the difference between digital photo processing and digital photo processing?

When converting data photos into JPG format in ACDSEE, or saving other files as JPG in PhotoSHop, there will be choices of compression parameters or quality parameters. According to the purpose, the size of the picture can be changed to meet different requirements without changing the resolution of JPG. If it's a photo of five or six inches, you still can't see the difference, but if it's used in a photo contest, it will have a great impact if it's post-processed or enlarged to ten inches. There is also a group photo. When the number of people is ten or twenty, there are not many pixels on each face. If you compress the image quality again, it will be easier to see the face clearly.

Digital photos are digital photographic works, which usually refer to photographic works created with digital cameras. Digital photos are the perfect combination of digital technology and photography technology. The so-called digital representation is usually used in computer science and electronics, especially when real-world information is converted into binary digital form, such as digital audio and digital photos. Signals carrying data are electronic or optical pulses, and each amplitude represents logic 1 (with pulse and/or high) or logic 0 (without pulse and/or low).

Digital technology is also called digital technology because its core content is to digitize a series of continuous or discontinuous information.

In electronic technology, signals transmitted, processed and processed can be divided into two categories: one is analog signals, which are characterized by continuous changes in time and signal size, and the technology used to transmit, process and process analog signals is called analog technology; Another kind of signal is a digital signal, which is characterized by being discrete or discontinuous in time or size. The technology of transmitting, processing and processing digital signals is called digital technology.