Originally Posted by NextGen
If some of you, Dsperber, Ken, ADU, etc, had to pick only one set of settings for HD and one set for SD content would you set SYSM to 2 or 3 and what corresponding codes/image tweaks would go along with that if your sharpness slider stayed at 0?
I was watching The Matrix and noticed that with SYSM=2 and MHYL=3 and MHYE=3 really brings out texture detail but I'm wondering if there are other settings I should try to get a more pure picture. I have my sharpness slider at 0.
It's been awhile since I posted here as well. I'd be glad to give a few pointers if I can though. The only inputs I use on my Sony 34XBR800 are DVI and Component at 1080i though, so I can provide some tips on adjusting the edge settings for HD signals. The SD settings are bit more involved, so I may not be as much help with those.
First thing I'd suggest is to start with the User Sharpness control at the middle setting rather than turning it all the way down to the lowest setting. Turning Sharpness all the way down will actually degrade the detail, rather than turning Sharpness "off" on the Sony HD tubes. If you don't like how Sharpness looks at the middle setting, then you can tweak the basic sharpening effect higher or lower for a given resolution/input/picture mode using the 2170P-3/SHOF Sharpness offset. If you want to go by the book there are some patterns that can be of some use in making this tweak, such as the horizontal luminance sweep, and edge-enhancement tests in DVE. Be advised though that these patterns can easily be skewed by the other myriad edge-filtering controls in the SM. So you may do just as well setting it by eye based on the amount of edginess you want in the picture as anything else. There are only four different settings for SHOF, so it shouldn't be that tough deciding which looks best to your eyes for a given input. Once you have SHOF adjusted, then you can tweak the User Sharpness control up or down as needed for different programming.
2170P-3/SYSM basically controls the coarseness of the Sharpness control. SYSM=3 provides the finest sharpening, and SYSM=1 provides the coarsest. I prefer SYSM=3 for both HD and SD sources to preserve the finest details in both types of signals. It may depend on your viewing distance though. There may be some benefit to using a coarser setting if your viewing distance is much greater than about 6 or 7 feet to the TV for example, because the ultra-fine details become harder to make out the farther away you get.
There is another 2170P-3 parameter that is also closely related to SYSM, called SHF0 (not the same as SHOF). SHF0 appears to act basically like a high-pass filter, filtering out ultra-fine detail from the picture. A setting of SHF0=1 turns this filter OFF, allowing the super fine details (or noise as the case may be) to pass through. This works sort of like a sub-SYSM control, giving one extra level of finetuning for the level of detail in the image. Filtering out the ultra-fine detail with SHF0=0 will tend to give the picture a bit more sense of depth and "looseness" (and some might say also a bit more harshness). While disabling it (SHF0=1) will tend to make the picture seem a bit flatter, tighter and more "computer monitor-like", if that means anything. I go back and forth on this control, so my advise is just to try it set both ways, and see which you prefer, and which may be less stressful for your eyes.
There are other edge controls in 2170P-3 worth investigating as well, including the VM controls. If you want me to get into those too, just say so.
MID5/MHYL and MHYE control the enhancement of luminance detail in a horizontal direction (ie the sharpness of vertical edges). These are part of a group of digital edge controls that effect luminance and color detail in either a horizontal and vertical direction. The other related controls in the grouping are MHCL, MHCE, MVYL, MVYE, MVCL & MVCE.
MHYE controls the amount of luminance detail enhancement in a horizontal direction. And MHYL controls how coarse or fine that horizontal luminance detail enhancement will be, with 3 being the finest setting. The other controls are paired up the same way. (Note that the coarseness control actually comes first in each case, because it makes sense to adjust that before deciding how much of a sharpening effect you want.)
MHCL = coarseness of horizontal color detail enhancement
MHCE = amount of horizontal color detail enhancement
MVYL = coarseness of vertical luminance detail enhancement
MVYE = amount of vertical luminance detail enhancement
MVCL = coarseness of vertical color detail enhancement
MVCE = amount of vertical color detail enhancement
To simplify things on my TV, I treat this group of parameters as though they were just two controls-- one for the overall coarseness, and one for amount of overall detail enhancement. I leave all the coarseness settings (MHYL, MHCL, MVYL & MVCL) at 3. And then just tweak all the "amount" parameters (MHYE, MHCE, MVYE & MVCE) up and down together like a single control. I would not be afraid to get a little aggressive with the amount parameters on SD sources, and softer-looking HD sources such as you might get from alot of upconverting DVD players (like mine). These filters can do alot to bump up the detail in such sources, giving them a much more HD-like appearance. Settings as high as 5, 6 or even 7 are not out the realm of possibility here for MHYE, MHCE, MVYE and MVCE.
For higher quality HD inputs though (such as a Blu-ray player or HD broadcasts), you'll probably want MHYE, MHCE, MVYE and MVCE a bit more toned down, or perhaps even turned completely off.
Hopefully that'll get you started. If you want me to get a bit more into the nuts and bolts of these and the other edge filtering controls, just say so, and I'll try to break things down in more detail. Note also that if you had the "1080i scrolling bar fix" applied on your TV, then chances are the MID5 controls will have no effect on 1080i on your TV because the MID/DRC circuits are being bypassed for those signals.