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Re: [Discuss-gnuradio] Image Reading and Writing in GNU Radio

From: Martin Braun
Subject: Re: [Discuss-gnuradio] Image Reading and Writing in GNU Radio
Date: Tue, 29 Jul 2014 10:26:36 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0

On 07/29/2014 04:08 AM, Hoang Ngo-Khac wrote:
> Dear all,
> I want to transmit an image over wireless link, so I need two blocks: 
> + one for reading grayscale image and giving out a bit stream

I guess if you save the image in a non-compressed, grayscale format this
should come for free.

> + the other one take a bit stream as input and rebuild the image

There is no block for this. If your application doesn't have to be super
high speed, I recommend using matplotlib and Python blocks. Using those
is ridiculously easy (makes Matlab look hard).

Otherwise you'll have to build something using Qwt, which is harder
unless you're really good at Qt.


> Is there any completed toolbox containing blocks employing these
> functions? If none, could you give me some clue for writing my necessary
> blocks?
> Thanks in advance,
> Hoang
> *Hoang Ngo-Khac*
> Vietnam National University, Hanoi (VNU-H) - Univ. of Engineering and
> Technology (UET)
> Faculty of Electronics and Telecommunications (FET)
> Alternative email:  address@hidden, address@hidden
> Mobilephone:  +84.163.682.7874
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