[Elphel-support] 答复: 答复: 答复: 答复: 答复: sync stereo with lidar

Thu Mar 22 00:58:53 PDT 2018

Hi Andrey,

There seems to be an another error, “2.jpg”.

I have some doubts, could you please help me?

1.     Does gamma value remain unchanged when camera works ?  Who realize this gamma mapping, sensor or ISP?

2.     When gamma0 = gamma1 = gamma2= gamma3 = 0.57, gamma_scale0 = gamma_scale1 = gamma_scale2 = gamma_scale3 = 1024,

gamma mapping  is  Vout = a*Vin^gamma, a = 2.23  gamma = 0.57 , is it right? If not right, could you tell me the right? I use this gamma curve to convert the 12bit raw data, “result.jpg” is the result.

[cid:image003.jpg at 01D3C1F6.7CA5C2B0]

Thanks,

Allen Yin

发件人: Elphel Support <support-list at support.elphel.com>
发送时间: 2018年3月22日, 星期四 8:01
收件人: Allen Yin <allen.yin at blacksesame.com.cn>; Elphel List <support-list at support.elphel.com>
抄送: Pioneer Li <pioneer.li at blacksesame.com.cn>; Tao Zhang <tao.zhang at blacksesame.com.cn>; Qun Gu <qun.gu at blacksesame.com>; Winston Zhang <winston.zhang at blacksesame.com.cn>
主题: Re: [Elphel-support] 答复: 答复: 答复: 答复: sync stereo with lidar

Hello Allen,

I fixed master branch, should work now

Andrey

---- On Wed, 21 Mar 2018 01:25:58 -0700 Allen Yin<allen.yin at blacksesame.com.cn<mailto:allen.yin at blacksesame.com.cn>> wrote ----
Hi Andrey,

I have a try on the Ubuntu 14.04.

It seems there are some conflicts in the code. When I compile, there are some error. But I press run, ImageJ will work. I don’t know why. All steps follow the web page.

If we get the gamma value, how to calculate the 12-bit pixel value. If gamma is 0.57, equation is: out(8bit) = a*in(12bit)^0.57, a = 2 .23?

Thanks,

Allen Yin

发件人: Elphel Support <support-list at support.elphel.com<mailto:support-list at support.elphel.com>>
发送时间: 2018年3月21日, 星期三 0:40
收件人: Allen Yin <allen.yin at blacksesame.com.cn<mailto:allen.yin at blacksesame.com.cn>>; Elphel List <support-list at support.elphel.com<mailto:support-list at support.elphel.com>>
抄送: Tao Zhang <tao.zhang at blacksesame.com.cn<mailto:tao.zhang at blacksesame.com.cn>>; Pioneer Li <pioneer.li at blacksesame.com.cn<mailto:pioneer.li at blacksesame.com.cn>>; Winston Zhang <winston.zhang at blacksesame.com.cn<mailto:winston.zhang at blacksesame.com.cn>>; Qun Gu <qun.gu at blacksesame.com<mailto:qun.gu at blacksesame.com>>; Elphel Sales | Olga Filippova <sales at elphel.com<mailto:sales at elphel.com>>
主题: Re: 答复: [Elphel-support] 答复: 答复: sync stereo with lidar

Hello Allen,

I can not reproduce your setup because we do not have any computer with MS Windows here, I haven't used this family of OS since 2001. Yes, Eclipse is a multi-platform program, but we never tested our code with Windows, so there could be our bugs when running on Windows.

Can you please try installation it with (K)ubuntu 16.04 LTS? Then I will be able to reproduce all the steps.

Andrey

---- On Tue, 20 Mar 2018 02:35:29 -0700 Allen Yin<allen.yin at blacksesame.com.cn<mailto:allen.yin at blacksesame.com.cn>> wrote ----
Hi Andrey,

I follow the steps on the web page:

1.     Download plugin  “git clone https://git.elphel.com/Elphel/imagej-elphel.git”

2.     Download Eclipse IDE for Java EE Developers, get the “Eclipse Java Oxygen” for 64bit

3.     Edit “eclipse.ini”,  see “1.jpg”, I could find “-clean -startup” and “-XX :MaxPermSize”  these two items in the file,  so I modify the file as “2.jpg”

4.     In eclipse , “File -> Import -> Existing Maven Projects -> set imagej-elphel as Root Directory - a project will appear in the project list -> Finish ”

5.     “Run Configurations -> select Java Application -> New Launch Configuration -> find the needed plugin class -> Run”, see “3.jpg” and “4.jpg”

It could not build the plugin. Could you please help us to setup this environment and give us more detailed steps ?

OS: Windows 10

Thanks,

Allen Yin

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