2020 Electronic Technology Applications, Issue 12 Abstract: In response to the real-time requirements of image processing, an FPGA-based image compression codec system has been designed. This system includes functions such as real-time image acquisition, JPEG compression, and UART transmission. The Altera DE series development board is used, and the D5M camera is configured using Verilog … Read more
Overview 1. YUV Luma (Y) + Chroma (UV) format, generally, the sensor supports YUV422 format, which means the data format is output in the order of Y-U-Y-V. Each pixel in YUV occupies 2B, and if the pixel count is too high, the baseband chip may not handle it at high clock speeds. The data volume … Read more
IntroductionFor embedded product development, cost is the most fundamental consideration. Even if the conclusions are similar for the same problem, they often have completely different paths in different contexts. Take the question of whether “JPEG software decoding on the Cortex-M platform is meaningful” as an example; the thought process here is quite typical:First, the Cortex-M … Read more
In the process of image processing and storage optimization, the JPEG compression ratio directly affects image quality and file size. This example demonstrates the implementation of JPEG image compression, intuitively presenting the relationship between image effects and file sizes at different compression ratios. 1. Code %% JPEG compression processing with different quality ratios im = … Read more