JPEG Encoding/Decoding and VB .Net IPP Example

gregory_may — Sat, 14 May 2005 06:43:12 GMT

I looked over the IPP VB example. I was hoping to find out how to Encode/Decode JPEG's quickly with IPP. Unfortunatly, the VB example is using the built in .Net functions to Load a JPEG and convert it to a bitmap (Its easy to read, but alot going on in this statement):

'This statement loads a .Jpeg from disk into a memory Bitmap.
Dim bmp As Bitmap = New Bitmap(dlg.FileName)

I dont even know how to start navigating what is needed to replace this with the IPP equivalent.

Where do I start?

Currently My .Net code saves a BitMap into a MemoryStream. Using the built in .Net converters it takes between 75 Milisecnods and 100 Miliseconds on my P4 Laptop.:

MyBitmap.Save(MyMemoryStream, System.Drawing.Imaging.ImageFormat.Jpeg)

Also, I would be curious if anyone knows if the IPP libraries will give any performance savings in this case (are the IPP libraries significantly faster than the Built in .Net libraries for encoding/decoding Jpegs?)

Thanks!

Re: JPEG Encoding/Decoding and VB .Net IPP Example

Vladimir_Dudnik — Wed, 25 May 2005 02:08:40 GMT

Hi,

for VB environment it is better to create DLL with high-level interface (like IJL) and write VB interface only for this DLL than for thousands low-level functions in IPP

Regards,

Vladimir

topic JPEG Encoding/Decoding and VB .Net IPP Example in Intel® Integrated Performance Primitives

JPEG Encoding/Decoding and VB .Net IPP Example

Re: JPEG Encoding/Decoding and VB .Net IPP Example