The same resolution as the MKV video — a 1080p MKV produces 1920×1080 TIFF frames; a 4K MKV produces 3840×2160 TIFF frames. Use the resize utility after extraction if you want smaller thumbnails or social-media-sized crops.
קען איך אױסשטעלן װײַל װיפֿל ראָמען פֿון MKV װי TIFF?
Almost always motion blur baked into the MKV source — the camera or subject was moving when the frame was captured. Pick timestamps from static scenes, or extract adjacent frames and choose the sharpest. The pipeline does not synthesize detail that was not there.