Forums

JPEG encoding on Freescale imx25

Started by deBoogle May 26, 2011
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 confuses me as it written for an OS based system, and
uses file systems rather than good old RAM.  

Has anyone implememnted a JPEG encoder for mcu that would be willing to
share?  Even a gentle nudge n the right direction would be great...

many thanks
de Boogle



	   
					
---------------------------------------		
Posted through http://www.EmbeddedRelated.com
On May 27, 3:22=A0am, "deBoogle" <ddebethel@n_o_s_p_a_m.mdl.co.uk>
wrote:
> 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 tas=
k
> 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 confuses me as it written for an OS based system, and > uses file systems rather than good old RAM. =A0 > > Has anyone implememnted a JPEG encoder for mcu that would be willing to > share? =A0Even a gentle nudge n the right direction would be great... > > many thanks > de Boogle > > --------------------------------------- =A0 =A0 =A0 =A0 > Posted throughhttp://www.EmbeddedRelated.com
http://www.digi.com/news/pressrelease.jsp?prid=3D260
"deBoogle" <ddebethel@n_o_s_p_a_m.mdl.co.uk> wrote in message 
news:DtSdnW3GJ8byNUPQnZ2dnUVZ_uCdnZ2d@giganews.com...
> 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 confuses me as it written for an OS based system, and > uses file systems rather than good old RAM. > > Has anyone implememnted a JPEG encoder for mcu that would be willing to > share? Even a gentle nudge n the right direction would be great... > > many thanks > de Boogle > > >
not answering your question but I assume you have looked at omnivision's jpg output cameras?