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dm368 jpegencode encode a yuv image to a bad image

diniao Bu
Prodigy 20 points
Other Parts Discussed in Thread: TMS320DM365

hello,

when I use the cd /usr/share/ti/ti-dmai-apps/ ,then ./image_encode_io1_dm365.x470MV -c jpegenc -e encode \
-i output.yuv -o output.jpeg -r 640x480 \
--iColorSpace 3 --oColorSpace 1 

then get a bad image

 
please help me to solve this problem ,thank you
  • 0
    Mastermind 8775 points

    Dear Diniao Bu,

    Can you please give me some more details listed below?

         1.   Which DVSDK are you using?

         2.   Version of codec.

         3.   The parameters/configuration settings which you use.
    Also there is a known issue with high quality factor(97) and inputChromaFormat = 4 (422ILE)
  • 0 in reply to Prashanth Kumar15
    Prodigy 20 points

    i use dvsdk_dm365_4_02_00_06.I run the dmai refer to TMS320DM365_Software_Developers_Guide.  

    the seller use the same environment and hardware ,all is same ,but their's is normal ,is ok.they think  that there is something wrong with my chip. 

  • 0 in reply to diniao Bu
    Prodigy 20 points

    what version have you been using. jpeg encoding is a lossy image compression compared with jpeg 2000 which support both compression mode.have you tried jbig2 compression method. if not, give a try. hope they are helpful to you.