JPEG Encode/Decode Library

JPEG Encode/Decode Library

Overview

• Encodes and decodes color still images
• Perfect such as in digital still cameras and other image-related applications
• Available in hard accelerator version and all-software version

Target Device

Hard accelerator version

• SH-Mobile Series

All-software version

• V850^*
• SH-2A
• SH-2
• RX600 Series^*
• RX200 Series^*
• M32R Family
• M16C Family
• R32C Series
  
  *. Scheduled to be supported

Note:

• Renesas provides evaluation versions of All-Software JPEG Software Library free-of-charge. Please download the appropriate file here.

 

Main specification

• Compliant with JPEG baseline encoding system

Features

Accelerator version (Target MCU: SH-Mobile3A, etc.)

• High-speed JPEG encoding/decoding with built-in CPU hardware IP
• Partition processing mode helps reduce need for system memory capacity such as frame buffer

All-Software Version

• C interface
• Image encode/decode function with the JPEG baseline coding system
• DCT high-speed calculation based on DSP function instructions and assembler tuning embedded in MCU
• Approximately 150ms (RX62N at 100MHz) to decode QVGA size (320 x 240, 4:2:2, approx. 25KB)
• Application sample program included
• Supports image formatting (Exif, DCF, etc.) and arbitrary horizontal component fraction

Applications

• All types of digital AV equipment (digital still cameras, digital video camera DVDs, etc.)
• Mobile phones, FAX machines, e-mail terminals, printers
• All types of commercial-use equipment

Related Information

• All-Software JPEG Software Library

Processing Image