Search results
Results from the WOW.Com Content Network
In general, chroma features are robust to noise (e.g., ambient noise or percussive sounds), independent of timbre and instrumentation and independent of loudness and dynamics. HPCPs are tuning independent and consider the presence of harmonic frequencies, so that the reference frequency can be different from the standard A 440 Hz.
The Simple Studio Profile has six levels, ranging from SDTV to 4K resolution. [12] SStP allows for up to 12-bit bit depth and up to 4:4:4 chroma subsampling , [ 12 ] using intra-frame coding only. [ 13 ]
The resulting time-chroma representation is also referred to as chromagram. The figure above shows chromagrams for a C-major scale, once obtained from a musical score and once from an audio recording. Because of the close relation between the terms chroma and pitch class, chroma features are also referred to as pitch class profiles.
Chroma subsampling is the practice of encoding images by implementing less ... (although some profiles of MPEG-4 Part 2 and H.264/MPEG-4 AVC allow higher ...
For uniform color spaces that already have a lightness component, the transformation only involves rearranging the two chroma values into colorfulness (C) and hue (h). CIELCh ab and CIELCh uv are cylindrical transformations of the CIELAB and CIELUV color spaces, respectively. The cylindrical coordinates C* (chroma, relative saturation) and h ...
A pitch class is a set of all pitches that share the same chroma, just like "the set of all white things" is the collection of all white objects. [ 4 ] In standard Western equal temperament , distinct spellings can refer to the same sounding object: B ♯ 3 , C 4 , and D 4 all refer to the same pitch, hence share the same chroma, and therefore ...
This profile builds on top of the High 4:2:2 Profile, supporting up to 4:4:4 chroma sampling, up to 14 bits per sample, and additionally supporting efficient lossless region coding and the coding of each picture as three separate color planes.
YCbCr is sometimes abbreviated to YCC.Typically the terms Y′CbCr, YCbCr, YPbPr and YUV are used interchangeably, leading to some confusion. The main difference is that YPbPr is used with analog images and YCbCr with digital images, leading to different scaling values for U max and V max (in YCbCr both are ) when converting to/from YUV.