Who Killed IRE Levels?

Not too long ago, IRE levels were commonly included in minimum illumination specifications, e.g., .1 lux f/1.2 50 IRE

A few manufacturers still include the IRE level, but it's definitely a minority of IP camera manufacturers.

The goal of using IRE was to define a standard level of contrast so there was uniformity in when one decided an image was no longer any useful. Since images progressively get worse in low light, you need some metric to decide what lux level to declare as minimum illumination.

IRE is a "unit used in the measurement of composite video signals."

The problem with IP cameras is that you no longer have a composite video out, you have frames / packets. So even if you wanted to use IRE, you cannot.

Can anything be done here? Anyone have any advice.

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**** ** * **** **** ********. * *** ****** ******* when ****** **** *** ***** ***** *** *** ******* *** included. *** ** ** ******* *** *** ** ** *** camera?

***** *** ********* *** ******* ** **** ** ******* *** IRE?

*. ***

*. **** ** ***

****, **** ********.

**'* ***** ******* ** ****** ************* *** ************ ******** *** SNR ** **** :)

** *** ****, * ** *** **** ** *** *** compare **** ****** *************. ** * **** **** *** **** the **** ** **** *** ****? * ***'* ****, *** I ***'* ***** **.

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*******,

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*** **** ***** **** ** *** ** *** *** **** video **** *** ** ****** **** *** *** **** ** the ********** ** ********** ***. * ***** **** ** ******* have ** **** ****** ***** ***** ** ******* ***** * US$295 ************** ********* **** ** *** **. ** *** ****** *** ** ***** ******, *** ***** set *** ******* ** ****** ** ******* **** ****** ** the *** *********** ** ***. **** ***** *** **** ** DVI ******, ** *** ******** ****, ** *** ** ***** a ********* **** ** **$*** ************* ********** ******* ********* **** ** *** **. **** ***** ***** *** ** ******* **** ******** ********** of *** ** ****** ***** *********** *** ***** *** *** way **** ** ** ** **.

***** ************ ********@ *.*

*****, *** ******* **** ********* / *******'* ******** ** **** it ** ***** ** ***** ****** ********** *** **** *** reflect ******* ** *** ** ******* ******* *** *** ***** processing **** *** ****** ******** ****** ***** ***************. ** *********** * ******** ****** **** *** ****.

****, * ******* ******* **** *** ** **** ***** ** your ******* "*********, ****** ** *** ******* ***** ***** ****." "please ***** ** *** ****.".

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*** *** ********* *** ******* **** *** ***** *** *** on **** **** *** ***** ******. ***** *** **** ** the ******* / ********* ** ***** *** ****** ** ******* (or ***) *** ***** ****** ** * ***** ****** ** comparative *** ***** ***********.

****, * **** *** ****** **** * ***** ** **** discussion, ** ***. ***'* ****** ** *** ********.
** *** *** * ***** **** ***** ** ******* ******* very ***********, *** **** ****** *** **** ***** ** ** models. ***** *** *** ***** *****!

(***) ** *** ***** **** * ************'* ************* **** *** *** */*.* ** ***,** ******* ********** ***** ***?

***** ******* **** ** */* ** *** ********* (*** ** it **** ** ******* ** *** ***** ***), ************* *** manufacture ****** *** ****** **** ****. ******* *** ***** ** 0 *** ***** ** ********** **** *** *********** ** * lux ** ********* *** ****, ***....

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"(***) ** *** ***** **** * ************'* ************* **** *** *** */*.* ** ***,** ******* ********** ***** ***?"

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* **** ******* ** *** *** ****** ** *** ** anyone *** *** ******** ** ************. *** ********, ****'* ******* is *********** *** ** *** ***** ** ******** **** ** that.

*** ******* *** **********, ********** ** *** *** ***** ****, simply ******* ******** **** ** ** ** **********.

* ****** ** "**********... ******* ******** **** ** ** ** themselves", *** *** ****** **** ******* ************* *** ** ****** their *** ******** ********/*******/********, *** ******* *** *** ***********. *** not **** ******* **** ******* *** **** **********, *****? *** instance ** *** ******* ***** ***** ******* ********* ************ ******* one *** ****** ** ********* **** ************** ******.

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* ***** ******* ** ***** ******, ** **** **** ** be ** *********** **** **** * **** *** ******, ***, as ** ******, ** ***** *** *** **** ****** ****...

********** ******* ****'* ****** ********(***) ***** *** ****** ** *** *** ** *******:

****** ****'** ******** **** ***** ***** ** ****** ****** ****** down. **** *********** ** *** ***** ** ******* *** ** unspecified **** ** *.*** ***

***, *** *** (**************) ******** ******** **** *** ***** *** tests. * *** **** ****** ** **** *** ****** ************'* specs!

***, ***** *** **** ** ** ************* **** **** *** levels, **'* **** *** ****, *** **** ***** **** **, can't ****** ** *******.