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Adventurer
Adventurer
894 Views
Registered: ‎09-18-2017

Image compression

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Hello!

 

Shortly,I have a picture I want to compress ( 640x480 image) that is currently on the rgb-24 bit format.

Are there any peripherals used to compress an image in vivado ?

I would be very glad if you could give me some tips regarding image compression.

 

regards,

 

John

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Scholar hbucher
Scholar
1,329 Views
Registered: ‎03-22-2016

Re: Image compression

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@azurath So you want to use this picture in your design? What board are you using? 

There are numerous ways to accomplish this.

vitorian.com --- We do this for fun. Always give kudos. Accept as solution if your question was answered.
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Scholar hbucher
Scholar
1,330 Views
Registered: ‎03-22-2016

Re: Image compression

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@azurath So you want to use this picture in your design? What board are you using? 

There are numerous ways to accomplish this.

vitorian.com --- We do this for fun. Always give kudos. Accept as solution if your question was answered.
I will not answer to personal messages - use the forums instead.
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Xilinx Employee
Xilinx Employee
847 Views
Registered: ‎08-01-2008

Re: Image compression

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Xilinx doesn't have any IP for image compression . You can check with third party IPs .

For image compression you required to do DCT transform and other steps.
Thanks and Regards
Balkrishan
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Adventurer
Adventurer
837 Views
Registered: ‎09-18-2017

Re: Image compression

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cool I will check it

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Adventurer
Adventurer
825 Views
Registered: ‎09-18-2017

Re: Image compression

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I am currently using the nexus video board and want to minimize my picture and send it to another uB processor operating in my multicore system.

Do you know any relevant method that can be used?

 

 

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Scholar hbucher
Scholar
813 Views
Registered: ‎03-22-2016

Re: Image compression

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@azurath I just need to know a bit more about it - is it a picture (like a photo) or a logo with lots of plain colors?

I say that because in the later you could use a simple RLE compression scheme that works really well for certain types of plain pictures

https://en.wikipedia.org/wiki/Run-length_encoding

Otherwise I found a JPEG compression algorithm at opencores

https://opencores.org/project,jpeg

That said, you only need the **decompressor** part in HDL as you can compress it with normal tools on your PC. 

But it all depends on the nature of your image, it might be easier than you think. If you can post the image here or send to me in private, I can assess and give you more feedback.

 

 

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