Sentence examples for background value was set from inspiring English sources
In each image, the background value was set using the "threshold" function of the software to exclude all pixels surrounding the positive stained signals.
The average A and the standard deviation SD of background signal was calculated and the threshold value was set at A + 3SD.
Where background was higher than the ChIP-seq signal, the value was set to zero.
The minimum fold change value was set to 2. Resulting genes were classified according to their functions against the background of gene-ontology databases and the underlying literature and experimental background.
The background threshold value is set to be: average background counts + standard deviation of background counts * sigma_factor.
A background value was used to set the threshold between labeled pixels and background pixels.
Flag value is set to 1 if the spot has an intensity value significantly different from the local background, 0 otherwise.
Spots with a mean intensity below their local background were excluded and the normalized M value for missing values was set to zero.
