Image Resizing using DMIP

[panky8070]

Hi ,

Can I use DMIP to resize the image? if so how shud i do?

Regards,

Pankaj

[Sridevi_A_Intel]

Hi Pankaj,

As far as I know, you cannot use DMIP to resize the image.Instead you could use Intel IPP Resize function.let me know if this doesnt work for you.

Thanks,
Sridevi.

[Kishor_D_]

Hi,

We can't use DMIP for image resizing. I tried that. I derived a node and in overriden "DO" method I used ippiResize but it doesn't give proeper resized image.

[Sergey_K_Intel]

There's a clean explanation of this. DMIP as a technology based on re-using of CPU data cache. To do this, DMIP graph compiler prior to execution needs to know the sizes of images going to be processed. Resize changes the image sizes, moreover it changes the sizes during, say, graph execuition. So, graph compiler cannot deduce what destination image size will be. It breaks the initial idea of data cahe control.

Regards,

Sergey

[SergeyKostrov]

Hi,

I've beed using an Image Processing APIfrom Intel'sIPPfor a couple of years, and prior to this API fromImage Processing library( IPL )v2.5.

IPP has ippiResize function.
IPL has iplResize function.

Both functions were used for image processingand none of problems detected.

Also, there is an ippiDemo.exe application in a ..\Demo sub-folder where IPP is installed. It demostrates all features of ippiResize function.

An example of howippiResize functionmagnifies an image in 2.5x is enclosed.ippiResize with Cubic-based interpolation provides best "balance" between resolution and low level of artifacts.

Could you be more specific, please? More detailswould be niceto have regarding your claim "...it doesn't give proper resized image..."

Best regards,
Sergey

[Kishor_D_]

pls check the attached images