Image too shining

Post Reply
zamani
Posts: 28
Joined: Fri Dec 14, 2007 9:27 am
Location: Malaysia

Image too shining

Post by zamani »

Greetings

I'm doing a slideshow (jpeg image) with ken burn effects

The problem is, some images tend to be too striking/shining especially when wires, silver coloured objects involved and it turn out pretty damaging when watching on TV. Eventhough its just a still image but the out put has a glare. I honestly don't know how to put it in proper description but say you look at a wire with the sun shines on it...the reflections...something like that.

Is this has anything to do with :
# the quality of the image ?
# compression value - I use 85
# Video Data Rate - normally set to Variable/7000


Project settings :
PAL (25 fps)
Video tracks: 7
Microsoft AVI files
24 bits, 720 x 576, 4:3, 25 fps
Frame Based
DV Video Encoder -- type 1
DV Audio -- PAL, 48.000 kHz, 16 Bit, Stereo

Video settings :
MPEG files
24 bits, 720 x 576, 25 fps
Frame Based
(MPEG-2), 4:3
Video data rate: Variable (Max. 7000 kbps)


Any help is very much appreciated.
[color=green][size=75]Please excuse my english[/size][/color]
Gorf
Advisor
Posts: 428
Joined: Tue May 31, 2005 2:46 pm
Location: Blackburn, UK

Post by Gorf »

Have you tried playback on a different TV?
Devil
Posts: 3032
Joined: Fri Mar 18, 2005 8:06 am
Location: Cyprus

Post by Devil »

Your question is impossible to answer because we cannot see what the problem is and we never would without your inviting us into your living room!

What does your still look like on your computer? Are the whites saturated? If so, does reducing the contrast and adjusting the brilliance or adjusting the gamma improve it?

Do you get the same problem viewing the DV on your computer?

Do you get the same problem viewing the MPEG on your computer?

If there is no significant difference, then the problem does not lie with the encoding.

Have you got the means to play the DV on your TV (e.g., make a tape in a camcorder and play it back via the analogue output)?

Is your TV adjusted properly? If the brilliance wick is turned up, saturation could occur.

Etc.
[b][i][color=red]Devil[/color][/i][/b]

[size=84]P4 Core 2 Duo 2.6 GHz/Elite NVidia NF650iSLIT-A/2 Gb dual channel FSB 1333 MHz/Gainward NVidia 7300/2 x 80 Gb, 1 x 300 Gb, 1 x 200 Gb/DVCAM DRV-1000P drive/ Pan NV-DX1&-DX100/MSP8/WS2/PI11/C3D etc.[/size]
zamani
Posts: 28
Joined: Fri Dec 14, 2007 9:27 am
Location: Malaysia

Post by zamani »

Thanks for the responds
This is most likely due to my TV setting,
Could be its too bright.
Will keep on experimenting

anyway another 3 quick questions :

#1 - perform non square pixel rendering (from project setting) - what actually does this function produce ? from what i noticed , if applied, the video somehow got cropped at both left and right side of it. Only noticeable when watching the DVD on TV. Means some part of the side of the video is not visible on TV but i got "full screen" when playing it back with my PC.

#2 - auto deinterlace - applied this but can't see anything happened to the final output. I know i missed out something...but can't figure out what...

#3 - Transition effect - I notice whenever i use the "crossfade" & "fade to black" transition, it doesn't goes smoothly (with Fade to Black, it end up with a lines in between both sequence where the transition take effect and for crossfade, for the next sequence, there's still a left over of the previous clip in form of dots) not that smooth as it should be.

So i tried with Frame Based instead of Lower Field First (as advised for peroject & video setting). Problem solved. Ok to this point its Frame Based BUT 1 thing i noticed with Frame Based, it makes the final output slightly "darker" than the original source. Not the case with Lower Field First.

So yeah... that's my conflict

Again any guidance/tips is very much appreciated, thanks alot (hope i don't waste anyone's time)
[color=green][size=75]Please excuse my english[/size][/color]
Post Reply