bitonal

adj.

双调的；

Bitonal membrane systems : Interactions of biological membranes
Thresholding gray-scale images to produce bitonal images
Use of the hue parameter of the hue, saturation, value color space as a quantitative analytical parameter for bitonal optical sensors
Alignment of L and H in bitonal pitch accents: testing two hypotheses
Source-channel optimized trellis codes for bitonal image transmission over AWGN channels.
Methods of Bitonal Image Conversion for Modern and Classic Documents
Source-channel optimized trellis codes for bi-tonal image transmission over AWGN channels
Bitonal image creation for automatic content conversion
Some Qualitative Aspects of Bitonal Complexes
A bitonal lexical pitch accent in the Limburgian dialect of Borgloon