• State
  • Locked Locked
  • Replies 5 replies
  • Subscribers 31 subscribers
  • Views 609 views
  • Users 0 members are here
Support feedback
Options
Options

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TIVA support on algorithms to compress the images

Santosh PG
Expert 1590 points

Hi,

We are using TM4C123x, Please help to get some algorithm to compress the images(JPEG format) which captured from camera and to save it on SD card.

Best Regards,

Santosh.

  • 0
    TI__Intellectual 1530 points

    Hi Santosh,

    Your best option for the time being is to find a third party compression algorithm to help with your project. As present, we don't have plans to support this feature in the near future.

    Angela

  • 0
    TI__Mastermind 26900 points

    Santosh,

      JPEG images are already compressed. Could you please clarify what you are trying to do?

  • 0 in reply to Dave Wilson
    Guru 117855 points

    Dave Wilson said:
    JPEG images are already compressed.

    Indeed - suspect he seeks to process & then display these JPEG images.

    As you clearly know - the memory savings & scaling ability of JPEG raises them far beyond older BMP format...

    Certain other ARM vendors - along w/Graphic Code providers - support such JPEG processing & resulting display - would be a nice addition to your existing Graphic library work - many believe...

  • 0 in reply to cb1_mobile
    TI__Mastermind 26900 points

    I agree that we could do with adding a JPEG decoder to our offerings. We actually used to ship the Independent JPEG Group's reference decoder with the dk-lm3s9b96 version of StellarisWare but the work to port this to TM4C hasn't been done yet. Frankly, that decoder isn't a great example for a real product because it's rather slow and doesn't handle errors in a very product-friendly manner.

    I've seen ports of other, more appropriate decoders (picojpeg, I think?) but we can't include those because they are unfortunately licensed under GPL which isn't compatible with the BSD and TI licenses TivaWare uses.

  • 0 in reply to Dave Wilson
    Guru 117855 points

    Yet one more illustration of a rapid-fire, detailed, caring, "Dave Wilson" technical response/analysis. 

    And - you've provided critical insight into the "how/why/where" - surely to the benefit of JPEG-interested others.

    Thanks for your (usual) great, in-depth assistance my friend...  (very much appreciated...)