Linux/AM5728: OpenCV issues in SDK 4.1

xiaoyan Chi

Expert 1395 points

Part Number: AM5728

Tool/software: Linux

Hi,

We are going to use opencl to accelerate opencv.

We reference the http://processors.wiki.ti.com/index.php/OpenCV

UMat src, UMat dst;

cv::ocl::setUseOpenCL(true);

bgSubtractor->apply(src, dst, 0.001); // to accelerate this fun

cv::ocl::setUseOpenCL(false);

Then : export OPENCV_OPENCL_DEVICE='TI AM57:ACCELERATOR:TI Multicore C66 DSP' and excute the app

The following is the concole output :

error: cannot find file "/usr/share/ti/ti-imglib-c66x-tree/lib/imglib.ae66"
error #10010: errors encountered during linking; "/tmp/openclCbATGF.out" not
built

>> Compilation failure
OpenCL program build log: -D RADIUSX=1 -D RADIUSY=1 -D LSIZE0=16 -D LSIZE1=16 -D OP_ERODE -D DOUBLE_SUPPORT -D PROCESS_ELEMS='PROCESS(0,0)PROCESS(0,1)PROCESS(0,2)PROCESS(1,0)PROCESS(1,1)PROCESS(1,2)PROCESS(2,0)PROCESS(2,1)PROCESS(2,2)' -D T=uchar -D DEPTH_0 -D cn=1 -D T1=uchar -D convertToWT=convert_float -D convertToT=convert_uchar_sat_rte -D ST=uchar -DHAVE_TIIMGLIB /usr/share/ti/ti-imglib-c66x-tree/lib/imglib.ae66

>> Compilation failure

[ 526.565073] omap_hwmod: mmu1_dsp2: _wait_target_disable failed
[ 526.577519] omap_hwmod: mmu0_dsp2: _wait_target_disable failed
[ 526.590167] omap_hwmod: mmu1_dsp1: _wait_target_disable failed
[ 526.602744] omap_hwmod: mmu0_dsp1: _wait_target_disable failed
error: cannot find file "/usr/share/ti/ti-imglib-c66x-tree/lib/imglib.ae66"
error #10010: errors encountered during linking; "/tmp/opencl50oYTk.out" not
built

>> Compilation failure
OpenCL program build log: -D RADIUSX=2 -D RADIUSY=2 -D LSIZE0=16 -D LSIZE1=16 -D OP_DILATE -D DOUBLE_SUPPORT -D PROCESS_ELEMS='PROCESS(0,0)PROCESS(0,1)PROCESS(0,2)PROCESS(0,3)PROCESS(0,4)PROCESS(1,0)PROCESS(1,1)PROCESS(1,2)PROCESS(1,3)PROCESS(1,4)PROCESS(2,0)PROCESS(2,1)PROCESS(2,2)PROCESS(2,3)PROCESS(2,4)PROCESS(3,0)PROCESS(3,1)PROCESS(3,2)PROCESS(3,3)PROCESS(3,4)PROCESS(4,0)PROCESS(4,1)PROCESS(4,2)PROCESS(4,3)PROCESS(4,4)' -D T=uchar -D DEPTH_0 -D cn=1 -D T1=uchar -D convertToWT=convert_float -D convertToT=convert_uchar_sat_rte -D ST=uchar -DHAVE_TIIMGLIB /usr/share/ti/ti-imglib-c66x-tree/lib/imglib.ae66

>> Compilation failure

Best Regards

over 7 years ago

0 Biser Gatchev-XID over 7 years ago

TI__Guru**** 393215 points

The software team have been notified. They will respond here.

0 xiaoyan Chi over 7 years ago in reply to Biser Gatchev-XID

Expert 1395 points

Hi,

We found another question about opencv optimizing .

We want to achieve erode() and dilate()

Mat element11 = getStructuringElement(0, Size(3, 3), Point(-1, -1));

//cv::ocl::setUseOpenCL(true);

erode(matFront, matFront, element11, Point(-1, -1), 1);

dilate(matFront, matFront, element11, Point(-1, -1), 2);

//cv::ocl::setUseOpenCL(false);

If we dispatched to DSP.The above error will also appear.

http://processors.wiki.ti.com/index.php/OpenCV said erode() and dilate() is the function of successful optimization.

How could we use DSP to accelerate these functions?

0 Rahul Prabhu over 7 years ago in reply to xiaoyan Chi

TI__Guru** 116350 points

We acknowledge that this is bug in the current SDK that was introduced as IMGLIB has been removed from the Linux filesystem.

You can solve the issue by downloading the IMGLIB using Wget and then copy it over to the NFS or SD filesystem using :

wget software-dl.ti.com/.../imglib_c66x_3_2_0_1_Linux.bin

Then run the installer and copy the imglib ~/ti/imglib_c66x_3_2_0_1/packages/ti/imglib to target filesystem (e.g. in case of NFS: ~/ti-processor-sdk-linux-am57xx-evm-04.xx.yy.zz/targetNFS/usr/share/ti/ti-imglib-c66x-tree/)

you can track the resolution of this issue using bug ID PLSDK-1808 in the SDK release notes. We are targetting resolving this issue in the next release v4.3

Regards,
Rahul

0 xiaoyan Chi over 7 years ago in reply to Rahul Prabhu

Expert 1395 points

Hi,

Thanks for you reply.

We can run our opencv code now.

But the erode() and dilate() efficiency still can't improve.

Where can I find the reference code we need?

Processors

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Linux/AM5728: OpenCV issues in SDK 4.1