The edition 10/2013 of video is a Blu-ray-Disc, with their professional test pictures and sequences you can adjust many settings in the TV standard. You can order the magazine with the Blu-ray in the subscription shop. The Blu-ray was designed to allow menu screens to guide the user as easily as possible, with a brief explanation of the entire process.
Note on the test files
If you want something more background information, read the article in the magazine, where more technical details will be revealed. As some of our discs are also traded without a booklet, you can download the entire article as a PDF file at the end of this article.
The test files
Ultra HD - The new generation of television
In addition, we also want to offer test images in Ultra-HD (4K, 3840x2160 pixels), with which the lab of video works. Since a Blu-ray disc does not support this resolution, you can also download the files here. All source files show the same image, only in other formats. It has been blended from elements of the Blu-ray, so that almost all settings can be made at once.
Basically, only the input is set at which the image is being viewed. Thus, the JPG photos are only capable of matching the photoplayer of a UHD-TV. Here the playback is fundamentally different from the movies. You can never properly match movie playback with a photo.
All about HEVC - High Efficiency Video Coding
Movies have a reduced dynamic range and allow levels to be easily out of the correct maxima: ultrasound and super white. Photos take full advantage of the full range. Therefore, in our UHD photos, the control bar for brightness and contrast only work as far as the optimum.
Also played on a PC and played via HDMI to the TV, you can never use photos (still images as JPG, TIF, PNG or BMP) for adjustment, if one wants to balance the Fimwiedergabe. They use a different playback hardware (graphics overlay). In fact, you should compare movies (videos) and desktop (photos) separately. In addition, in the film area, the test sequences must use exactly the same codec as the movie you are watching (eg Blu-ray or DVD).
Just a few months ago we presented the first isf ultra-HD test pictures and offered them for free download.
Download: File
Download: UHD_444.jpg, UHD_422.jpg and video_uhd.mp4
Download: File
JPG files (UHD_444.jpg, UHD_422.jpg): With this JPG-Photo in Ultra-HD resolution, the photo playback of an Ultra-HDTV (or a PC as a feed-in) can be adjusted correctly. The "444" file is encoded with full color resolution (YCrCb, each pixel has its own color information). This does not support some TVs. In this case, try the "422" variant. Here, the color resolution was halved, as is customary, for example, in any film codec. Play the files onto a USB stick and plug them directly into your Ultra HD TV. Video file (video_uhd.mp4): In order to be able to correctly adjust the movie playback, you need a test picture which encodes as a movie Is. This MPEG-4 film shows our test image for one minute, with film-compatible 23.976 images per second. It is encoded in H.264 MPEG AVC, because of Ultra-HD in High Profile, Level 5.1. Unfortunately, there are no devices on PCs that are playing this movie, but will hopefully change soon. We use this test pattern via our laboratory reference PC with Ultra-HD graphics card. ZIP file (Samsung_UHD_Test.zip): With the 2013 Ultra-HD TVs from Samsung, it is possible to play Ultra-HD movies via USB . The procedure is complex and only suitable for demos. We coded our test pattern so that it ran on the Samsung UHD TVs in our laboratory. The ZIP file must be unpacked on a USB stick. There are four files (UHD_demo_a.mp4, UHD_demo_b.mp4sub, UHD_demo_c.mp4sub, UHD_demo_d.mp4sub) that belong together on the stick.
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