bizarre problem when using "wow" style"

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bizarre problem when using "wow" style"


<p>The problem I have is very simple as you can see it in the screenshot. As soon I use wow style I have these white stripes on the raw file.</p>

<p>What could be the cause? How could I solve it?</p>

<p>Thank you.</p>


<p>Ps: I am not authorized to access this page when I want to attach a media...</p>


<p>hope you understand my issue...</p>

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The WOW style can be too aggressive for some images.  You may want to reduce the opacity with that slider.  



hello, ok thank you. Wow

hello, ok thank you. Wow style is aggressive with every single image. Tried to reduce opacity. Worked out with some images, did not for other. It is a shame because it is a great style.


Ummmm, yeah, about that "Wow" style....

Legacy style from bad days at Lightcrafts. Old schoolers like me don't approve. Just sayin'.


wow style white stripes present in all pictures... :-(


Which camera model?

Which camera model?

canon 1200d ( europe)  

canon 1200d ( europe)


I can't reproduce

the problem, please, try this sample:

My examples are shot with firmware ver. 1.0.0, I see, there is 1.0.1 available, so check your version also.

thank you for your help,no

thank you for your help,no white zigzag stripes on your pic after wow style!!! So?


So, check the firmware

version of your camera and, if possible, upload a cr2 + lzn.jpg files to (You can use Dropbox or any similar service, that doesn't change the images.)

We need a raw photo to confirm (or not) a bug.

firmware 1.0.0 canon 1200d
RAW Tone Curve is missing

for EOS 1200D, while Rebel T5 has one. This is a glitch, it happens here and there because of the silly Canon's naming conventions. See this topic for a workaround.


looking at your photo and your lzn.tiff, with or without the Wow! style or tone curve, on Windows or Linux, I still don't see anything bizarre, no zigzag stripes here. Fresh pairs of eyes needed!

topic workaround

Could you be so kind to explain that procedure again? I don't get it!

BTW, is this necessary to upgrade my firmware?

Thanks again for your help

Here are

the temporary RAW Tone Curve and my screenshot with and without the Wow! thingy. (Raw tone curve enabled in both cases.) That's what I see ...

Unzip the curve to your Templates folder/directory.



this is a screenshot wow!:

saving my file ( jpeg/tif) the zigzag stripes disappeared...

It ia anyway very hard to work on with these stripes

Screenshot from what?

Is this a screenshot from the EDIT screen, the BROWSE screen, or a program outside of LZ?  Viewing the image from the BROWSE mode may not be representative of the actual image.




this is a screenshot of the edit screen of lzn after having applied wow! style




"It is anyway very hard to work on with these stripes"

Seeing the stripes, it is obvious that you can't work with such a distortion. I have no idea, whether it is LightZone related at all. Can you get similar annoyances, using other tools, for instance Sharpen with same or similar settings (100, 500, 20, Soft Light, 70 % opacity)?

Sorry, if I have missed this, but what OS exactly are you using, which version of Linux and LightZone and Java? Even some data about your computer could be useful (processor, RAM, graphic card). There are some experienced Linux users here.

Did you try to use "my" RAW Tone Curve for your camera? The lack of it should not be the culprit here, but still, it should improve the default rendering of 1200D photos. You can report this glitch - missing tone curve for 1200D - here, or, if you want, I can do this for you. (The workaround is simply saving a T5 tone curve as a 1200D tone curve.)

Upgrading the firmware? The changes are described here, I have no smart advice. In theory, it should, at least, do no harm.

IS this on linux

I suppose the png is a screenshot. If so please what is your distribution, graphics card and kernel version. It might be because of a new, not well supported graphics card, or that it is running the wrong x-server. Maybe also the output from a terminal of

lspci | grep VGA

I do not at the moment think there is a problem with the program since jacal cant reproduce it, but probably something system related.


Have a nice day

ubuntu 16.04

lightzone version 4.1.7
Computer aspire E15 amd quad core A8-6410 ( up to 2.4GHz)

lspci | grep VGA
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Mullins [Radeon R4/R5 Graphics] (rev 05)

sudo lshw -c display

description: VGA compatible controller
product: Mullins [Radeon R4/R5 Graphics]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 1
bus info: pci@0000:00:01.0
version: 05
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
configuration: driver=radeon latency=0
resources: irq:39 memory:e0000000-efffffff memory:f0000000-f07fffff ioport:3000(size=256) memory:f0c00000-f0c3ffff memory:f0c80000-f0c9ffff

lshw -c display | grep driver
configuration: driver=radeon latency=0

uname -r
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.1 LTS
Release: 16.04
Codename: xenial

java -version
openjdk version "1.8.0_111"
OpenJDK Runtime Environment (build 1.8.0_111-8u111-b14-2ubuntu0.16.04.2-b14)
OpenJDK 64-Bit Server VM (build 25.111-b14, mixed mode)

thx for your help

Have you tried compatibility mode

Thank you for the input


To me everything looks normal. I am on archlinux myself and have no problem.

If you are running under Unity or gnome shell, you might try 2d-compatibility mode from your login screen. The whole desktop is in normal mode using openGL. This might be the cause to problems with progams using 2d. If this helps you might consider updating your drivers (maybe from or using the non-free catalyst driver.


Have a nice day

driver updated

  2 screenshots after wow style:

one wow style applied with fit screen edit mode, the other with zooming in. As you can see white stripes disappear when zoom in...

I had a look at the wow specs. "raggio" default value looks to me very high ( 500). If I diminish it white stripes disappear.



What do you think of all that? Thx again.



Then it is a problem with the program

And I can see Masahiro is looking into this. I am sure it will be solved soon.


Have a nice day

I can reproduce the issue

The stripes appears only when Radius value is large and Zoom is 7 - 15%, for instance r > 256 on 1:8, or r >= 320 on 1:10.  I think that this is a bug in Sharpen tool. I'll look into it.


% uname -a Linux first 4.8.0-27-generic #29-Ubuntu SMP Thu Oct 20 21:03:13 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

% cat /etc/lsb-release  DISTRIB_ID=Ubuntu DISTRIB_RELEASE=16.10 DISTRIB_CODENAME=yakkety DISTRIB_DESCRIPTION="Ubuntu 16.10"

% java -version java version "9-ea" Java(TM) SE Runtime Environment (build 9-ea+140) Java HotSpot(TM) 64-Bit Server VM (build 9-ea+140, mixed mode)  



Masahiro: I can Reproduce it too

under those parameters.  But why does LZ behave differently using my own camera's CR2 raw image (Canon 7D MkII)?  That's even if I remove the Raw Tone Curve or leave it in.



Try with portrait

oriented photos, I can reproduce it with this one.

Can't Get that One, I Get

Forbidden error.

Sorry, direct links are forbidden,

on this page, scroll down to "Sample RAW Images" and take number 5.

Not limited to cr2,

I was able to reproduce this on vertically/portrait oriented cr2 and nef files from different cameras, EOS 5DS R being the only exception that I found. Changing the exif:Orientation tag in landscape oriented images triggers the same behaviour.


This issue was fixed by following code change, and I'm going to include the fix in next release (v4.1.8).