Mity CPU Platforms » MityDSP-L138 (ARM9 Based Platforms)

The C64X IMGLIB libraries from TI can be used by simply linking the library provided by TI to your application and calling the routines as needed.

The IMGLIB comes with a users manual and API reference guide from TI.

In the vision_framework example, the tcAlgorithmEdgeDetect::Process() class makes use of the IMG_sobel_3x3_16() library routine to perform a basic edge detection transform.

-Mike

Hello Mike,

Thanks for your reply, actually i understood that in your vision_framework you have used C64X IMGLIB libraries from the link provided. But my doubt is whether can we use latest C64X+ IMGLIB (which has enhancements from its previous version C64X IMGLIB like it has got 16 bit functions that would fulfill our application) on MitydspL138F vision_frame_work. For your reference kindly go through the link " http://www.ti.com/tool/sprc264", in that we are asking about "C64XPLUS-IMGLIB: C64x+ Image Library".

Thanks in advance, kindly reply at the earliest.

with regards,
Naveen K.S.

You can use the C64X+ IMGLIB with the OMAP-L138. The 674x core is a superset of c67x+ and c64x+ instruction sets.

-Mike

Hello Mike,

Thanks for your reply..

with regards,
Naveen K.S

Hello Mike,

In the vision_framework example given by you it is clear that the tcAlgorithmEdgeDetect::Process() class makes use of the IMG_sobel_3x3_16() library routine to perform a basic edge detection transform.

But in order to call IMG_sobel_3x3_16() IMGLIB function, we have to give the arguments like input_image size, output_image size, number of cols, number of rows, so how this has to be done?

Also do we need to use PRAGMA Directives like DATA_ALIGN to align the buffer on a byte boundary to be used by IMGLIB, DATA_SECTION if so with respect to your board how this has to be done?

Can you provide any example program of calling IMG_sobel_3x3_16() IMGLIB function, so that above questions will be answered.

Thanks in advance

with regards,
Naveen K.S

Hello Naveen,

As you stated, the vision_framework demo uses the IMG_sobel_3x3_16(), which you can use to understand exactly how the IMG_sobel_3x3_16() function is called (look in file AlgorithmEdgeDetect.cpp).

Regarding the DATA_ALIGN question, you can follow our vision_framework demo (file VisionApp.cpp) for an example on how to use the pragma directives.

-Bob