Qmax Mst 999 V2 Software 37
Linda Berens
Another hand property, calculated from measures of thermal transport, is the qmax value (watts/m2C). This evaluation is used to assess the surface warm / cool sensations of a garment fabric and indicates the instantaneous thermal feeling sensed when there is initial contact of the material with the skin surface. Simulating initial touch when shopping or when donning the fabric in wear, the qmax value largely depends on the contact area between skin and fabric surface. Thus, the surface characteristic of a material is important to sensations on how warm or cool a fabric feels to an individual. A higher value of qmax denotes that there is more rapid movement of heat from the body to the fabric surface resulting in a cooler feeling fabric.
As I understand setting low value for qmax will improve the quality by increasing the bitrate.Maybe I didn't understood something but isn't lowing the Q(quantization) will decrease the quantization levels and thus the bitrate which means degradation in quality? Or in ffmpeg lowing Q means increasing the quantization levels? If the last is true so it make sense that lower qmax improves the quality.
If the above is true, so increasing qmax will decrease the quantization levels which means less bits for coding a quantization level. So, if number of bits for a level is lower, so total bits per frame will be lower, so how the encoder manage to get to the desired bitrate?
But with ffmpeg qmax may have different meaning as it's a codec dependent parameters. for x264 it should be a quantizer see here,But with some others codecs it doesn't represent a quantization level but a quality range.
so if you increase the video quality the encoded output will be closer to the original, and that often require a higher bit-rate, but internally it often means that lower quantization level are use.
b1e95dc632