Re: [Rapp-users] Image Resample with RAPP library

[Johan Almbladh]

Hi Raffaele,

The function rapp_reduce_2x2_u8() scales down a u8 image by a factor of two in both dimensions. There are also versions for bit-packed binary images as well if you need that.

There are currently only functions for upscaling binary images, rapp_expand_2x2_bin(), not for u8 images. Feel free to add that if you need u8 upscaling. :)

Please see the sections on spatial reduction and spatial expansion in the manual for details.

Best regards,

Johan

On Mon, May 25, 2015 at 12:43 PM, Raffaele Iuliano <address@hidden> wrote:

Hi,
I’m working for the implementation of a resampling procedure in C.
The algorithm has to run on smart cameras, so the efficiency is very important.
There is a way to use RAPP for implementing the resize of an image (both upscaling and downscaling)?
The image is gray-scale, 1 channel, 1 byte per pixel. It has been created using rapp-malloc and it is aligned.
Which RAPP functions i have to call?

Thanks for patience and support.

Best regards.

                                                                                                                                                          Raffaele Iuliano