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Add RF dropouts #68
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this looks like the head switching artifact moving upwards |
Nope, It just appears and disappears it doesn't seem to move up and down, when I come back home I'll also send a video here |
I've been meaning to implement this for a while, since I've noticed it in a lot of VHS recordings, but I still don't know how it works fully. It doesn't seem like the VCR necessarily repeats the previous line always, but it doesn't look exactly like head switching artifacts either. |
A VCR dropout occurs when the tape emulsion fails. It can be on one line and can last for a few nanoseconds, Most notably found in deinterlaced footage. It could be implemented under the "VHS" tab. This could be made with the color loss logic. |
I found an article that explains more in detail the causes of white noise and other type of dropouts and how to prevent them. https://cool.culturalheritage.org/videopreservation/vid_guide/6/6.html |
There are still many VHS artifacts missing so this could be a start, here are some examples
![image-13](https://private-user-images.githubusercontent.com/161225418/314423647-9e7a337a-9b07-4a0c-a626-6687aa8fff21.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTUiLCJleHAiOjE3MjQ4MDQ1MzgsIm5iZiI6MTcyNDgwNDIzOCwicGF0aCI6Ii8xNjEyMjU0MTgvMzE0NDIzNjQ3LTllN2EzMzdhLTliMDctNGEwYy1hNjI2LTY2ODdhYThmZmYyMS5wbmc_WC1BbXotQWxnb3JpdGhtPUFXUzQtSE1BQy1TSEEyNTYmWC1BbXotQ3JlZGVudGlhbD1BS0lBVkNPRFlMU0E1M1BRSzRaQSUyRjIwMjQwODI4JTJGdXMtZWFzdC0xJTJGczMlMkZhd3M0X3JlcXVlc3QmWC1BbXotRGF0ZT0yMDI0MDgyOFQwMDE3MThaJlgtQW16LUV4cGlyZXM9MzAwJlgtQW16LVNpZ25hdHVyZT05YTA4NTFmNTMzMWJkN2NhMGNiZGQxYzE1YTMzYzYyZTAxNTU4Y2Y0OTA3MGVhMDEzZjM1ZDk0ZWE5YTA3MjRmJlgtQW16LVNpZ25lZEhlYWRlcnM9aG9zdCZhY3Rvcl9pZD0wJmtleV9pZD0wJnJlcG9faWQ9MCJ9.xNF_ZLcIAFy_Ba22_rq-0GiMHKaWTSaFOCuK8oWrk9M)
![image-16](https://private-user-images.githubusercontent.com/161225418/314423678-e9c8aeb1-fa4e-4987-a2ef-906cb81f64ef.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTUiLCJleHAiOjE3MjQ4MDQ1MzgsIm5iZiI6MTcyNDgwNDIzOCwicGF0aCI6Ii8xNjEyMjU0MTgvMzE0NDIzNjc4LWU5YzhhZWIxLWZhNGUtNDk4Ny1hMmVmLTkwNmNiODFmNjRlZi5wbmc_WC1BbXotQWxnb3JpdGhtPUFXUzQtSE1BQy1TSEEyNTYmWC1BbXotQ3JlZGVudGlhbD1BS0lBVkNPRFlMU0E1M1BRSzRaQSUyRjIwMjQwODI4JTJGdXMtZWFzdC0xJTJGczMlMkZhd3M0X3JlcXVlc3QmWC1BbXotRGF0ZT0yMDI0MDgyOFQwMDE3MThaJlgtQW16LUV4cGlyZXM9MzAwJlgtQW16LVNpZ25hdHVyZT1lNjRkNzkyMWFmMTAwNmVhYmJjMTBhNTNkZWZiMWJhYzQ5MTQ2M2FkOGU1NjE0ZDZhNjk5NjJhZjViMjQ4ZWZhJlgtQW16LVNpZ25lZEhlYWRlcnM9aG9zdCZhY3Rvcl9pZD0wJmtleV9pZD0wJnJlcG9faWQ9MCJ9.rA-HHEUnMKkCWzDWxB98h1v5p-v61Sucs-KX4Fq8zRs)
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