Deinterlacing has nothing to do with this. There is an explanation towards the end: http://searchcio-midmarket.techtarget.com/definition/S-Video
i changed it to "Is a discoloration on lines." for now. sry for my lack of knowledge i really thought it is deinterlacing bound.
What is deinterlacing?Pretty much wrong again.
Is the process of converting a interlaced video into a progressive form. Interlaced video is a sequence of pictures where every other frame contains only the even lines of an image, the rest contains odd lines. A sequence of two images combined is one full image.
k, i'm really certain i know what interlacing/deinterlacing is. it may be my lack of english why the description failed. i had a really hard time explaining it but i'm not really satisfied. the first part should be right "Is the process of converting a interlaced video into a progressive form."
here what i meant:
|source ||interlaced Upper Field ||interlaced Lower Field ||deinterlaced|
for example 25 fps progressive video -> 50 fps interlace video -> 25 fps progressive video.
it's not hard to spot those problems but explaining it is another thing ^^. maybe you can help me with the right wording, i don't want to copy the wiki entry. it's too wordy and most people won't read it at all.
Also, dot crawl should appear in the static section, too, because even in stills, the checkerboard pattern can be quite obvious:
Bad — good
(see the red text in the top left corner).
i thought i will add example images/comparisons to the video comparisons, so we don't need an extra entry for it.
The two have unrelated causes and effects, so it's best to distinguish ringing from haloing.
Ringing usually refers to a type of blocking artifact which happens on hard edges from not enough bitrate or misuse of AQ.
Haloing is a side-effect from strong sharpening effects, which causes bright 'halos' around hard edges. When it's really bad, you can have multiple halos.
i see, they have unrelated causes, but they are bit similar. lot of people referring to it as the same error (so do/did i). i will add separate entries.
Could you also add a section for 'Dirty lines' (brightened, darkened, or discolored lines on the edges of a frame which contain parts of the image), since that has come up a couple times recently? Possibly something like 'Wrong aspect ratio', 'Overcropping/Cropped-source', and 'Ghosting/Double-image' as well.
i initially thought "edge noise" would cover that, but what you mean with "Dirty lines" is a bit different. maybe name it "Dirty Borderlines" this may cover edge noise and the discolored/brightened/darkened lines. what do you think?
Wrong aspect ratio is a severe problem but it's hard to demonstrate with two pics. one is squeezed and one is less squeezed. you just need the hang to notice it without a source pic. but will see what we can do about it. maybe an explanation with an image from a round object. on one screen the object is more oval and on the other more like a circle. will add overcropping and ghosting.
could you elaborate "explain the balancing act between sharpening, aliasing, and haloing." we want to make a simple guide, this may be a bit to much tech talk for most of the people. just stating the problem and simply state what it cause.
it may need another approach of fixing but it looks just like deinterlacing or IVTC problem
all the comparison images are really nice and i appreciate the effort, but some explanations and descriptions would also be nice. ^^
what exactly is "bad field matching". i may be wrong but is it something like this
i'm sorry. i may be a bit unknowledgeable, but that is exactly the reason why i (personally) started this. i hope you can bear with me.