DM355 Coprocessor

Started by amerdsp in comp.arch.embedded9 years ago 3 replies

Hello, Does anyone here have any experience with TI's DaVinci DSP's? I am trying to find out what the co processor does, specifically with...

Hello, Does anyone here have any experience with TI's DaVinci DSP's? I am trying to find out what the co processor does, specifically with Jpeg compression. Here is an excerpt from the description: DM355 performance is enhanced by its MPEG4/JPEG coprocessor. The MPEG4/ JPEG coprocessor performs the computational operations required for image processing; JPEG compression and MPEG4 vide...


JPEG hardware encoder

Started by ggditzel in comp.arch.embedded12 years ago 6 replies

Hello, I'm looking for JPEG image processors (encoders). I found only 2, ADV202 from Analog Devices and PM-36 from Zoran. I would appreciate...

Hello, I'm looking for JPEG image processors (encoders). I found only 2, ADV202 from Analog Devices and PM-36 from Zoran. I would appreciate if anyone could point me to similar devices. It doesn't need to be very fast. I intend to capture one frame of NTSC video with Philips' SAA7111, and then do the conversion to JPEG in hardware, with a dedicated IC. I only need a few frames per second...


Embedded JPEG compression

Started by Fred in comp.arch.embedded13 years ago 6 replies

I have looked for some time at the Independent JPEG Group set of files for JPEG compression. These are extremely difficult to transcribe to a...

I have looked for some time at the Independent JPEG Group set of files for JPEG compression. These are extremely difficult to transcribe to a C compiler for a micro. This code seems primarily for Linux and has lots of bells and whistles which I don't need. The group use C in a way I am not use to and my experience is mainly with micros and microcontrollers. A long shot - but does anyone k...


JPEG encoding on Freescale imx25

Started by deBoogle in comp.arch.embedded6 years ago 2 replies

Hi folks, I have recently started implementing some omnivsion camera sensors on the Freescale i.mx25 micro and I need to convert the RGB565...

Hi folks, I have recently started implementing some omnivsion camera sensors on the Freescale i.mx25 micro and I need to convert the RGB565 images to JPEG. So, I have had a good look around for some JPEG encoders to do such a task and all i can find that seems to be of any use is libJPEG, which is huge and in no way optimised for micro-controller type platforms and to be honest a lot of it con...


IJG Jpeg Compression input

Started by prune in comp.arch.embedded10 years ago 1 reply

Hi, For the jpeg library, I am using a windows bitmap, which takes a considerable amount of space. Since I am only using 4 colors, RGB...

Hi, For the jpeg library, I am using a windows bitmap, which takes a considerable amount of space. Since I am only using 4 colors, RGB and black, I am looking at reducing the size of the bitmap input file. Where and how can I configure the library so it can effectively use a smaller input file for jpeg encoding?


jpeg to video

Started by Anchor in comp.arch.embedded12 years ago 5 replies

We are looking for ideas on designing a SD mem chip jpeg file to composite video viewer using an embedded uC. We assume we have to decompress...

We are looking for ideas on designing a SD mem chip jpeg file to composite video viewer using an embedded uC. We assume we have to decompress the jpeg file to some memory, resample it to screen resolution, convert to yuv and stream it out through a yuv to composite video chip. What chip sets are out there that can help us along with this project?


JPEG decoding?

Started by Buddy Smith in comp.arch.embedded14 years ago 1 reply

Hi, I'm looking for a DSP or CPU or (your suggestion here) capable of doing 320x240 JPEG decoding at around 15*8 frames per second, with some...

Hi, I'm looking for a DSP or CPU or (your suggestion here) capable of doing 320x240 JPEG decoding at around 15*8 frames per second, with some spare for motion detection. Currently i'm looking at a TI DM 64x family DSP. any other suggestions? --buddy -- Remove '.spaminator' and '.invalid' from email address when replying.


conversion from JPEG to RGB

Started by najafa in comp.arch.embedded7 years ago 6 replies

Hi, I need to write a c code in Linux to convert video data from JPEG to RGB in order to display on an LCD. Been searching but I can't find any...

Hi, I need to write a c code in Linux to convert video data from JPEG to RGB in order to display on an LCD. Been searching but I can't find any helpful leads. Any helpful suggestion is most welcomed. Thanks in advance --------------------------------------- Posted through http://www.EmbeddedRelated.com


Image display

Started by eeh in comp.arch.embedded10 years ago 1 reply

Hi, I want to know who knows whether there is already a project done to load a color jpeg or a color gif image file from a SD memory card...

Hi, I want to know who knows whether there is already a project done to load a color jpeg or a color gif image file from a SD memory card and display it to a TFT panel. If yes, please give the web link to me for reference. The MCU used is 8-bits. Thanks!


Sending email with embedded device

Started by rush in comp.arch.embedded9 years ago 10 replies

I am looking for some help with development of a consumer product. One aspect of the project requires the embedded device to send and receive an...

I am looking for some help with development of a consumer product. One aspect of the project requires the embedded device to send and receive an email using an internal dial-up modem. Emails sent and received will contain jpeg images. Can anyone recommend a good starting point for micro or chipset tailored for such an application. Thanks


Porting libjpeg to bare boards

Started by kunil in comp.arch.embedded11 years ago 7 replies

Hi all, I just want to ask..in theory is it possible to port algorithm only software to bare board ? I have ATMega128 connected to...

Hi all, I just want to ask..in theory is it possible to port algorithm only software to bare board ? I have ATMega128 connected to graphic LCD. I want to make an electronic picture/photo frame (so I can change the photo using SDCARD or other solid state disk). So I need to have JPEG decoder (the GPL ones..since this is just for my fun..). So I'm thinking to port libJPEG for ATMega12...


image/sensor data routing and saving?

Started by solarst in comp.arch.embedded8 years ago 6 replies

Lots of questions, I hope someone can guide me in the right direction! I'm looking for some help in designing a system that can take data from...

Lots of questions, I hope someone can guide me in the right direction! I'm looking for some help in designing a system that can take data from an image sensor and store it in some sort of MMC/flash memory. It will be part of a wearable device for monitoring diet/activity constantly during the day. We're looking into using an image sensor from OmniVision that has built-in JPEG compression (e...


final(?) Xbox2 Specifications

Started by R500 Xenon in comp.arch.embedded12 years ago 6 replies

newly leaked (or released?) specifications for the Xbox2 ~ Xenon ~ Xbox360 ____________________________________________________ Xbox...

newly leaked (or released?) specifications for the Xbox2 ~ Xenon ~ Xbox360 ____________________________________________________ Xbox 360 Hardware: 1. Support for DVD-video, DVD-Rom, DVD-R/RW, CD-DA, CD-Rom, CD-R, CD-RW, WMA CD, MP3 cd, JPEG photo CD 2. All games supported at 16:9, 720p and 1080i, anti-aliasing 3. Customizable face plates to change appearance 4. 3 USB 2.0 ports ...


Camera module with fast wakeup time

Started by Sal P. in comp.arch.embedded10 years ago

I am currently using a C328-7640 camera module controlled via a ATmega16 micro. The camera takes VGA color pictures and formats them into...

I am currently using a C328-7640 camera module controlled via a ATmega16 micro. The camera takes VGA color pictures and formats them into JPEG, its a nice little unit except that I need to put it into sleep mode and trigger it only when I need a picture. The issue is that after I place the camera into sleep mode it takes 2 to 3 seconds for it to be awakened and be ready to take the nex...


Designing an embedded Digital Video Recorder (DVR)

Started by Miem in comp.arch.embedded10 years ago 3 replies

Hi, I wonder if someone tell me how to digitize and save/record composite color video data (and optionally audio) from a low-cost camera...

Hi, I wonder if someone tell me how to digitize and save/record composite color video data (and optionally audio) from a low-cost camera into compact flash or SD memory without using a PC. Following URL (http://www.circuitcellar.com/avr2006/winners/ AT3267.htm ) points an interesting AVR based image/video capture circuit in which designer use an OV528 (www.ovt.com) which is a JPEG compr...


Image compression MCU/DSP

Started by amerdsp in comp.arch.embedded11 years ago 21 replies

Hello all, What would you experts do if you want to perform image compression (I am thinking jpeg), on a low power board? The data is...

Hello all, What would you experts do if you want to perform image compression (I am thinking jpeg), on a low power board? The data is captured from an image sensor and needs to be transmitted elsewhere. Would you use a MCU bundled with a DSP or would you use two separate MCU and DSP chips? I was thinking about using a PIC with nano watt technology along with a low power DSP from TI. Or ...