You want to make the tests yourself?

A professional video engineer has 50 k$ devices as 'Scopes', Text Picture Generators, etc.pp.

We don't.

But we have creativity. Honorable forum member Euisung Lee had a very clever idea: 
if you want to check interlaced video, you need a video where the odd lines have one color, the even another. As Red/Green/Red/Green/Red/Green/…

So, fire up your Paint app (here: Pixelmator), create a new document, res: 1920x1080 (you did know that…). Now, the boring part: select a stencil of 1 pixel (!) size, choose color Red, draw a horizontal line on the very top. draw a second line, but leave one line, 1 pixel wide, free.. 
switch color to green, draw a line inbetween the two red and draw a second green line under the last red.. 

pheewww...

select  all, copy, paste.. = hey, 8 lines.. 1072 left.. 
select  all, copy, paste.. = hey, 16 lines.. 1064 left.. 
select  all, copy, paste.. = hey, 32 lines.. 
... ok, you got the idea.. 








2nd method: 
goto our download section, I made a red-green.png for your own tests.. 

another nice tool is a 'Siemens Star' - make a mov out of it, and control 'detail' - template in the DL-section, mentioned above.


BUT THAT IS NO MOVIE!

.. psssst, soon.




create a Folder 
drop in red-green.tiff
select all, duplicate file = two tiffs.
select all, duplicate file = four tiffs.
select all, duplicate file = eight tiffs.
… you got the idea..
for a 5sec movie, we need.. x30fps = 150 frames!

now, launch QTpro, choose 'Open Image Sequence', select first tiff in your folder.
QTpro asks for framerate, we say 30fps - tadaahh: a 5 sec movie, showing red and green lines .. 












now, Export, choose AIC, interlaced, 1920x1080.. 
WE HAVE A 5SEC AIC ENCODED .mov!
.. but why those 1pixel lines in two colors?

quite simple: if ANYWHERE a conversion into p happens or a reducing in resolution to 960x540, those red/green lines will 'vanish'!! and some ugly 'brownie' will appear.. or a plain red or green video (=one field doubled) occurs.. 



.. nice idea, Euisung!!

















Siemens Star


… another, more engineer based approach: the Siemens Star (Siemens was a German engineer, first electric car etc., but he did NOT invent this chart.. ). 

(too small! just an illustration. for test purposes, goto the download section)

The important part for us is the center of the Star: the closer you see any lines in the middle, the better the res.
Dramatized example:

(NO actual screengrab! just to give an impression…)

If the output looks like this, 'something' did happen with resolution. ok, the two different fields/one color missing method is more obvious.. we will use this when we compare iMHD6 and iM09  on handling DV + 'effects'.

Theory: effects are allways progressive. And we have to find out, wether that happened in iMHD6 too.. 







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