The contours of histogram bins show
how the Star Student Project local features from a given query
image Star Student Project  are distributed across servers .
Note Star Student Project  that each bin counts the number of
assigned Star Student Project  local features in a given
server, which serves as a sort  Star Student Project of
estimating the processing time unbalance between servers. Therefore,
more Star Student Project uniform histogram distribution means
that the corresponding search can be performed Star Student
Project  more efficiently,
as all servers are fully exploited in Star Student Project  this
search task.