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visits member for 3 years, 7 months
seen Mar 25 at 14:39

Jan
15
comment Is it possible to find a webcam with large aperture?
If you can get some distance between the green screen and the subject, you can light the green screen differently (use blinders with extra lights) such that when the subject is exposed properly, the green screen becomes over-exposed. This is an alternate way to get the color evenness you are hoping for.
Jan
14
comment Portable screen for USB camera
check out raspberrypi.stackexchange.com for info regarding OS etc.
Jan
14
comment How to deal with Youtube making videos 'pinkish'?
further, has the monitor you are using been properly calibrated?
Nov
22
comment Trying to add text to a video file and save it as an mpeg to be played in a slide show
You don't mention the model, but if "slideshow player" = "Digital Picture Frame", none of the ones on their website support video.
Oct
30
comment What is the difference between Refresh Rate and Flicker Rate?
In the wiki link, there is a footnoted paper: persistence affects required brightness, not refresh. In that paper, the closest I could find to a term that resembled the OP's question was "flicker threshold frequency"
Oct
30
comment What is the difference between Refresh Rate and Flicker Rate?
I don't believe you are incorrect, but I note that "Flicker Rate" is not a phrase that occurs in the Wikipedia article you linked. Obviously flicker is a function of time as you described, but do you have anything which contains the (jargon phrase) flicker rate? i.e. is this a "term of art"?
Oct
29
comment PS2/XBOX to projector
Actually, I misread your question a little. Some of the upscalers will have configurable output resolution over the HDMI. How much support there is seems to be a function of the price.
Oct
29
comment PS2/XBOX to projector
isn't svideo 640x480 by default? The "cornering" is just a form of letterboxing (without centering). If you want it to be centered and fill the screen without a change in aspect ratio, you need something which upconverts (resamples) th image. Or are you asking how to force a lower display resolution on your projector?
Oct
29
comment What is the difference between Refresh Rate and Flicker Rate?
I won't answer because it may be a term of art, but whenever I see "flicker rate" used (and I just did a quick book search on the phrase as well), it appears to refer to refresh rate. Even in technical papers.
Jul
31
comment What's the minimum needed to make a video of my guitar performance with good quality sound?
Put a Y splitter between the amp and your headphones, with one branch to the headphones, the other branch to the video recorder mic in. If you record the video via a pre-amp straight from the guitar, you will obviously be recording a different mix than what you hear out of the amp.
Jul
30
comment What specs should I be looking for in a camera to record board-game sessions?
Is there any reason why the video and the stop-motion must use the same camera?
May
24
comment Scrolling rainbow when projector screen is in frame
Newton Rings or Polarizing artifacts? Some devices use polarization for 3d display. This could also be an aliasing problem: the sampling resolution needs to be approx 2x larger than the smallest frequency.
Apr
12
comment Is it possible to convert output of TV Channel (set top box 720p) to 1080p?
VGA is an analog connection, but what is transmitted itself may be at 720p(1280 × 720) or 1080p(1920 x 1080) resolution. Resampling a low-resolution "standard def" image (which is probably what the STB is sending over the composite cable) is a much bigger visual problem than analog/digital signal. If a 720p channel is being downsampled for output over composite and then stretched (resampled) by the tv set to native resolution, you have even more degradation.
Mar
15
comment Looking for a Graphics program
Don't forget to ask your friend what file formats, color depth(s), transparency etc. his/her program will support.
Mar
8
comment What hardware/software to get fastest possible access time in AVC/h264 files?
can you specify a worst-case or average time (at least a magnitude) you are asking about? (i.e Are you trying to optimize a 5 second delay or 5 ms?)
Mar
1
comment White Balance/ Filters
does white balance adjustment impact capture speed? It does (or did) increase the required exposure time in DSLRs I have used.
Feb
27
comment Any DSLR monitors around 3 inches?
have you looked into DLSR controller apps for android and iphone? some of them allow for control and preview via a cable
Dec
11
comment Why does the color red always appear pixelated on TV and videos on the PC?
I suspect it may also have to do with the purity of the color. The other colors are also being quantized in the same manner as the red, but each color is treated individually, so the average area has overlap across three colors and they mask each other. The red in the sample frame is fairly pure.
Dec
6
comment Fixing a badly telecined 8mm film digitization
When he said duplicating frames, I presumed it wasn't interlaced, but I see that I misread it.
Dec
6
comment Fixing a badly telecined 8mm film digitization
Is there no useful tool (command line) to pull out individual frames from a 1080p video? If the individual frames positions can be derived, then a looped batch file with frame numbers is doable.