LigH
2nd July 2002, 16:42
Hi there!
Because of the lack of the required hardware, I'm not able to play an AVI on a TV set; therefore, I'm watching AVIs usually on my PC monitor.
DVDs are made to be tatched on TV sets. Therefore, they have a limited brightness and saturation range, and even a lower gamma curve. Watching directly converted AVIs on a PC monitor means that they are a bit too dark and too 'grey'.
To correct this a bit, I was previously using the "Levels" filter of VirtualDub to enhance the gamma curve by a factor between 1.3 (for already well lit movies) and 1.5 (for mostly dark ones), and the "H/S/I" filter by Donald Graft to freshen the colors by a factor of around 1.2 (for CG movies) to 1.3 (for older, bleached movies). But because VDub filters are only working in RGB mode, they were pretty slow.
For several months now, Donald Graft has released the "Tweak" filter plugin for AVISynth - now I can apply them in YUV space during the AVISynth frameserving process which is a lot faster.
I like using GKnot along with DVD2AVI to create the required D2V and AVS files for VirtualDub - up to that point that I always need to edit the AVS file manually to add the "Levels" and "Tweak" filter with the settings I prefer. Therefore, I would now like to ask you for supporting them, e.g. by extending this dialog window where I can chose the resizing and noise filter method.
The AVS file requires the following additional entries:
* LoadPlugin("Tweak.dll")
to support H/S/I + contrast changing,
* Levels({min_in},{gamma},{max_in},{min_out},{max_out})
* Tweak([hue={hue},][sat={sat},][bright={bright},][cont={cont}])
to apply range, gamma, contrast and H/S/I control.
Please tell me your opinion!
Because of the lack of the required hardware, I'm not able to play an AVI on a TV set; therefore, I'm watching AVIs usually on my PC monitor.
DVDs are made to be tatched on TV sets. Therefore, they have a limited brightness and saturation range, and even a lower gamma curve. Watching directly converted AVIs on a PC monitor means that they are a bit too dark and too 'grey'.
To correct this a bit, I was previously using the "Levels" filter of VirtualDub to enhance the gamma curve by a factor between 1.3 (for already well lit movies) and 1.5 (for mostly dark ones), and the "H/S/I" filter by Donald Graft to freshen the colors by a factor of around 1.2 (for CG movies) to 1.3 (for older, bleached movies). But because VDub filters are only working in RGB mode, they were pretty slow.
For several months now, Donald Graft has released the "Tweak" filter plugin for AVISynth - now I can apply them in YUV space during the AVISynth frameserving process which is a lot faster.
I like using GKnot along with DVD2AVI to create the required D2V and AVS files for VirtualDub - up to that point that I always need to edit the AVS file manually to add the "Levels" and "Tweak" filter with the settings I prefer. Therefore, I would now like to ask you for supporting them, e.g. by extending this dialog window where I can chose the resizing and noise filter method.
The AVS file requires the following additional entries:
* LoadPlugin("Tweak.dll")
to support H/S/I + contrast changing,
* Levels({min_in},{gamma},{max_in},{min_out},{max_out})
* Tweak([hue={hue},][sat={sat},][bright={bright},][cont={cont}])
to apply range, gamma, contrast and H/S/I control.
Please tell me your opinion!