Jfpjc
John's Field-Programmable JPEG Compressor; a jpeg compressor written in verilog. Currently targeted to deploy to Lattice's iCE40 up5k fpga.
Install / Use
/learn @johnMamish/JfpjcREADME
JFPJC: "John's Field-Programmable JPEG Compressor"
This project consists of JPEG compressors written for mobile platforms. It includes a partial Verilog and a partial C implementation of the original JPEG spec.
What's the POINT of it?
- I feel like it
What are some salient features?
- Corners may be cut for the sake of power consumption
- It will probably suck
- It's a hardware device
- It's a straightforward adaptation of standard
The Verilog one
The Verilog jpeg compressor can be found under the jfpjc directory. Right now, it only compresses 320x240 grayscale images and only synthesizes for an iCE40 UltraPlus FPGA, but I plan to make it more general.
It can compress 320x240 grayscale images on an iCE40 at 10fps while taking less than 4 milliWatts. The design has enough clock slack to work up to 90 frames per second, but I haven't tested beyond 40fps.
The C one
A C jpeg compressor for microcontrollers can be found under the jmcujc directory. It's been tested on an Apollo3 microcontroller, where it can compress images at 3fps while taking about 10 milliWatts.
