Comments (11)
hi @hongyann ,
can you try to tick/untick the auto-contrast option in the settings window? does this improve the image brightness? let me know if this doesn't help.
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left one produced without auto-contrast, and the right one was ticked the auto-contrast option. the right image looks better. But I still think that the color of the picture is a bit distorted, that is, the generated picture looks color abnormal compared to the color observed by the human eyes.
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I absolutely agree. The problem lies in the colour metric handling of plenopticam which I yet covered only rudimentary. When I take your screenshot and do auto-white-balancing and auto-contrast in GIMP, I get something more similar to your reference image (see left: plenopticam+GIMP, right: other)
Note that applying enhanced colour treatment prior to refocusing will further improve the quality of the image. I will look into this. In the meantime, may I ask what software you used to generate the better looking reference images?
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the software I used is lytro power tool.
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That explains it :) I have added a new automatic white balance procedure similar to that used in GIMP. You can use it by downloading the master branch and installing via 'python setup.py install'.
I will also implement some histogram equalization in the upcoming days and expect further improvements from this. Keep you updated
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I have tried to download using 'python setup.py install' , but there have been some problems during the installation process, I have not solved it. thanks for your answers, I will try it again.
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The install might have failed as your environment was missing the TIFF lib. I have now implemented a workaround using Pillow lib in case TIFF is not present.
I also added a first histogram equalization method to combat the dark image areas in the output images. You can use this method by ticking the contrast option in the current version of the develop branch (see below):
https://github.com/hahnec/plenopticam/tree/develop
You can install it with python setup.py install
and call the GUI via plenopticam -g
from the command line. Hope this helps. Let me know about further issues.
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with your develop branch, the produced image is better than before(left : before, right: produced now). thank you very much. and it will be perfect if you develop the color setting similar to our eyes.
when I process a stack of light-field images , I have a another question, that's how can I change the setting of plenopticam , for example: refocusing range, contrast automation. I have not found these settings in plenopticam -h .
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That's fantastic news! I pushed another update to the develop branch adding refocusing range options to the command line (use -h
after re-install for details) as I was facing the same problem as you. Let me know if this works for you.
color setting similar to our eyes
Can u pls tell more about what you mean by this?
Best
Chris
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It works ! so cool !
I am sorry that I have given you a fuzzy suggestion. You just ignore it.
thanks for your answers. hope you can develop more and more excellent works.
best wishes!
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I am glad it worked for you. On a last note, I want you to know that all branches now feature histogram matching when contrast automation is ticked which results in more natural contrast. I added this feature yesterday. Thanks for sharing your experience which helped improve the software and please get back if you come across new issues.
Best,
Chris
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Related Issues (20)
- Install Issue HOT 5
- Calibration data HOT 1
- sub-apertures data format HOT 1
- Upgrade SciPy from version 1.4.1 HOT 3
- About the use of the Lytro Illum camera HOT 3
- how to get the correct parameters in the disp2pts function HOT 6
- Use for LFM HOT 5
- White image file not found. Revise calibration path settings HOT 18
- Unable to solve dependencies on latest Ubuntu HOT 4
- Futur ?
- White image file not found. HOT 2
- white image file not present error HOT 4
- Problem running Plenopticam on Ubuntu HOT 2
- Depth of Field Control HOT 4
- Why didn't Lytro Desktop use the more accurate/primitive refocusing algorithm? HOT 1
- How to save the results in a different directory? HOT 1
- White image file not found. Revise calibration path settings. 0.9.3 HOT 11
- Original Lytro unlock
- bug whith slycing to get the bay_img in lfp_decoder HOT 1
- how to convert depth map to absolute distance HOT 1
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