e
slightly better performance on machines with large amount of memory,
while smaller values reduce memory usage.
Currently default value is 8 and maximum value is 32.</dd>
<dt><code>--no-opencl</code></dt>
<dd>By default OpenCL-based GPU acceleration is used if available. This
option can be specified to disable it.</dd>
<dt>
<code>--wait-images</code>=seconds</dt>
<dd>Wait for given time if any image files are missing. Specifying this
option allows to start processing before all image files have been
captur