Image resizeing using Camera ISP of OMAP

keshan

i am planning to use image resizer block of Camera isp.i dont know how to calculate filter coefficents for image resizeing.

i want to resize an image of 1024 x 768 to 480 x 272.

Can any one help me in this?

over 16 years ago

0 Bernie Thompson TI over 16 years ago

TI__Mastermind 41665 points

I have not tried to prove this, but I believe the OMAP resizer is similar enough to the Davinci resizer to use the same coefficients, they look to use the same filters. This being said you may be able to use the utility from the Understanding the Davinci Resizer application note, in particular the calccoeff utility from SPRC382.gz.

0 Jethin Sekhar over 13 years ago in reply to Bernie Thompson TI

Expert 1130 points

Hi thompson,

I have an issue in down scaling using ISP resizer from 1024x576 to 48x272 in 5tap mode which is not resizing correctly and getting pixel shifting, Instead of it i can do resizing upto 960x544 to 480x272.

Can you please suggest me the way to achieve 1024 width pixels to be resized in 5tap mode to 480 width pixels.

Thanks in Advance

Jethin

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Image resizeing using Camera ISP of OMAP