Axis WDR vs WDR?

Author: John Honovich, Published on Jun 14, 2013

Axis has two types of WDR, and if you do not know the difference between the two, join the club. One is called WDR with Dynamic Contrast and the other is called WDR with Dynamic Capture. They even sound almost identical. Recently, we had debates in the IPVMU class about this with attendees conflating both and us arguing that performance differences between the two were dramatic. In this note, we explain the differences between the two and how to best use (and not use) these features.

Background: Readers not familiar with WDR should first read our WDR tutorial

Contrast ** *******

****' '*******' **** ** **** **** ****** ** ** '****' WDR ***** ******** ********* ***** ****' '********' **** ** **** we ******** * '****' ******* ***.

**** ********* *** ********* *********** ** *******. **** ***************:

"*** ****** ****** ******** ** ***** **** ****** *** ***** than **** *** ****** *** **** ***. *** ****** **** performs ** ******** **** ******* *********, ***** **** ********** ****** are ******* ** ******** *** *** ***** ** * ****** that *** ******** ****** *** ******. ** **** **** *******, both *** ******* *** *** ******** ***** *** ***** **** account, ********* ** **** ******* ** **** **** – *.*. why *** **** “********” ** ****. * ****** **** * more ******** ******/********** ***** *** ******* **** ******** **** *******."

*** ****'* ****' ********** **************:

"*** ****** ‘********’ ******* ****** ** **** ******** **** ********* exposure ****** ******* ****. ***** ****** *** **** *** ******** to * *********, ***** **** *** ******** *** *** ******* parts *** ****. **** ***** *** * **** ****** *** depth, ****** **** * ******** ****** *** ******. *********, * tone ******* ** **** – ** ******** *** *****."

***** ****, ** *** **** **, **** ************ ******* ******* Dynamic *******, **** *** ***** ******* *** **** ******** ******* Capture, *** ***** *** *** ***** *****.

** *** *** ***** *****, ******* **** ******* ******** (**** the *****) ********* ** ********** ************ **** *** ******* ***** the Q1604 **** ******* *******, ********* *** **** ******* (****** ***** / ***** *** **** *******).

Beware ** ******* ********

** *** ****** **** *** **** ****, *** ****** *** Dynamic ******* ******* (*****/*****) *** **** **** **** *** ******* Contrast ****. ********, ** *** *** ********** ***, ** ******* not ** ****** *** **** ******* ******** *******. ** ***** this, *** *** *** ******* *** *********** **** ******** ********* as **** ** *** ******** ********* *** **** *** ** cameras.

*********?

**** ** *** *** ***** ******* **** *** ***** **** confuse ****** ***** ***** ****** ***** *** *** ****** ********* sounding *****, ***** ******** ** ****** ** ***** ********. *********,**** *** * *** ***** ***** *** **** **** ******** ******* *******. **** **** **** *** working ** *** ******** ** ****** ******* *** ***********. ******* they *** ****** *** **** ** ****** *** ****** '******* Contrast' ** ****** ****, *** **** ****** ******* *********** '****' WDR.

Comments (9)

"In our WDR scene tests, cameras with Dynamic Capture (like the P1344) delivered no noticeable improvements with WDR enabled while the Q1604 with Dynamic Contrast, delivered top tier quality (see the Q1604 / P1344 WDR test results)."

-- I think you get that one the wrong way around, right? Its the Dynamic Capture models that deliver the goods right?

You're right! Thanks! I fixed it.

This inadvertently :) goes to show how easy it is to confuse those terms.

i believe the terms are also reversed here...

"While many, if not most of, Axis professional cameras support Dynamic Capture, only two lines support the more powerful Dynamic Contrast, the Q1604 box and P3384 domes."

Yes, you're right! Fixed it.

I've been disappointed with Axis WDR (Dynamic Capture) on the P3384 cameras. My camera is installed indoors in an industrial setting (harsh lighting). It is a wide angle view and part of the scene includes a garage door.

The "WDR On" does a good job during the day, even with bright sunlight conditions. This is exactly what it is supposed to do. At night, the outdoor portion of the image is subpar compared to Lightfinder. However, the biggest issue is that the image brightness fluctuates, sometimes quickly enough to trigger the VMS motion detection. This mode also has more artifacts and haloing around lights.

The "Lightfider Mode" works pretty well at night and overcast days. During bright sunlight, the outdoor areas (as seen thru the truck bays) become washed-out and completely white at times. The image is very solid, little to no artifacts. No wild fluctuations in brightness. No issues with VMS motion detection.

I live in an area without much bright sunlight, and the outdoor area is not a priority for this particular security camera, so I abandoned WDR in favor of "Lightfinder Mode".

Recommendations for Axis: Offer a setting to switch between WDR and Lightfinder based on scene lighting. Improve image stability of WDR to avoid triggering motion detection from VMS and minimize artifacts. Perhaps combining WDR and Lightfinder features into a single feature set.

My findings with P3384 are pretty much in line with Aaron's except ours it at a front door where I am able to get some light off the street. So the camera goes into B/W mode and records the artifacts as a motion event during the early morning hours.

Aaron, thanks for the detailed feedback!

I discussed this with Axis and here's my understanding. As you note, there are 2 modes - WDR and Lightfinder. Those modes are mutually exclusive. If WDR is on, Lightfinder goes off (and vice versa). By default, WDR is on.

Axis suggests setting up an event to toggle between those modes. For instance, based on the cut filter status or use an I/O attached to photocell. This would enable WDR during the day when it is most needed and Lightfinder at night, when it is most useful.

That said, there is no single button / checkbox (like there is in Sony) to turn WDR off. However, if you set up an event that will deliver a similar outcome.

I do think the best 'default' would be WDR on during the day and off at night. There are certainly some applications that would not want this but I believe those would be the exceptions.

Steve, interesting observation about the artifacts creating motion events. I am assuming that's with WDR on at night?

Yes that is with WDR on at night time, no lightfinder. Sometimes i get motion events for the entire evening, other times i get it for maybe 5 mins or so. The artficat is just over the chair and the floor since there is less light. I get color in our front lobby with lightfinder on.

P3384-V I have a situation where I have an underground garage door I need coverage for. During daylight hours bright sunlight is typically on the ramp and in lightfinder mode the image is heavily backlit and the resulting image is dark. During night time hours the ramp is dark and WDR image poorly lit. I have compromised by enabling a schedule that has WDR Capture enabled during daylight hours and Lightfinder during night time hours and this solution provides the best of both options. Not perfect since daytime hours vary considerably during the year but again I compromised on a schedule that doesn't need constant attention.

Sample P3384-V WDR vs Lightfinder

Login to read this IPVM report.
Why do I need to log in?
IPVM conducts unique testing and research funded by member's payments enabling us to offer the most independent, accurate and in-depth information.

Related Reports on WDR

May 2018 Camera Course on Apr 20, 2018
Save $50 on early registration until this Thursday, the 26th. Register now (save $50) for the Spring 2018 Camera Course This is the only...
Axis Launches First Stereographic Panoramic Camera on Apr 05, 2018
Fisheye panoramics have not had much innovation in the past few years, with their multi-imager cousins getting most of the advances, e.g.,...
Dahua 4K Micro 4/3 Camera Tested (IPC-HF8835F) on Apr 03, 2018
Dahua is going big. Their new 4K HF8835F Micro Four Thirds sensor is one of the largest now on the market. Dahua is claming: Starlight...
Axis Z-Wave IP Camera Tested Poorly on Mar 20, 2018
Z-Wave is drawing notable interest for video surveillance use. In IPVM's initial coverage, 84% expressed interest in it, with nearly half being...
Camera Form Factor Guide on Mar 16, 2018
When selecting surveillance cameras, users may choose from a number of different form factors, each with its own unique strengths and weaknesses,...
Next Gen 5MP / 6MP Camera Shootout (Axis vs Dahua vs Hanwha vs Hikvision) on Feb 28, 2018
Many manufacturers have released new generation 5MP / 6MP cameras that tout super low light, WDR and other features historically typical in 1080p...
Hikvision 6MP Camera Tested (DS-2CD4565-IZH) on Feb 27, 2018
In the next installment of our ongoing testing of 5MP/6MP cameras, we test the Hikvision DS-2CD4565F-IZH, a 'Smart Series' vandal dome combining...
Hanwha Wisenet X 5MP Camera Tested (XNV-8080R) on Feb 13, 2018
Wisenet X is Hanwha's high-end camera line. We tested their Wisenet X 1080p camera last year. Now Hanwha is offering 5MP cameras listing super low...
Axis 'Best' Q3517-LVE 5MP Camera Tested on Feb 05, 2018
Axis boasts of its Q3517-LVE: Simply put, AXIS Q3517-LVE delivers the best video quality possible. But is it really the 'best'? We bought...
Dahua 5MP Starlight Camera Tested (N52BM3Z) on Jan 30, 2018
Is 5MP the new 1080p? According to our recent statistics, average resolution continues to trend upwards. And now, manufacturers releasing new...

Most Recent Industry Reports

May 2018 Camera Course on Apr 20, 2018
Save $50 on early registration until this Thursday, the 26th. Register now (save $50) for the Spring 2018 Camera Course This is the only...
Global Real-Time Video Surveillance - EarthNow on Apr 20, 2018
A new company, EarthNow, with backing from Bill Gates, Airbus and more, is claiming that: Users will be able to see places on Earth with a delay...
Dedicated Vs Converged Access Control Networks (Statistics) on Apr 20, 2018
Running one's access control system on a converged network, with one's computers and phones, can save money. On the other hand, hand, doing so can...
April 2018 IP Networking Course on Apr 19, 2018
This is the last chance to register for our IP Networking course. Register now. NEW - 2 sessions per class, 'day' and 'night' to give you double...
Rare Video Surveillance Fundraising - Verkada $15 Million on Apr 19, 2018
Fundraising in video surveillance (and the broader physical security market) has been poor recently. Highlights are few and far in between...
'Best In Show' Fails on Apr 19, 2018
ISC West's "Best In Show" has failed. For more than a decade, it has become increasingly irrelevant as the selections exhibit a cartoon level...
Security Camera Cleaning Frequency Statistics on Apr 18, 2018
150+ integrators told IPVM how often they clean cameras on customer's sites and why.  Inside we examine their answers and break down feedback...
Worst Access Control 2018 on Apr 18, 2018
Three access control providers stood out as providing the most problems for integrators. In this report, we analyze the answers to: "In the...
Axis VMD4 Analytics Tested on Apr 17, 2018
Axis is now on its 4th generation of video motion detection (VMD), which Axis calls "a free video analytics application." In this generation, Axis...
Arecont CEO And President Resign on Apr 17, 2018
This is good news for Arecont. Arecont's problems have been well known for years (e.g., most recently Worst Camera Manufacturers 2018 and starting...

The world's leading video surveillance information source, IPVM provides the best reporting, testing and training for 10,000+ members globally. Dedicated to independent and objective information, we uniquely refuse any and all advertisements, sponsorship and consulting from manufacturers.

About | FAQ | Contact