© 2013 Thorlabs GmbH242
DCx Cameras
4.3.43 is_GetImageHistogram
Syntax
INT is_GetImageHistogram (HIDS hCam,
int nID, INT ColorMode, DWORD* pHistoMem)
Description
is_GetImageHistogram() computes the histogram of the submitted image. The histogram always contains 256
values per channel. For color modes with a bit depth of more than 8 bits, the system evaluates the 8 most
significant bits (MSBs).
Input parameters
Color mode of the image with the nID memory ID
For a list of all available color formats and the associated input parameters, see
the Appendix: Color and memory formats section.
Pointer to a DWORD array
The array must be allocated in such a way that it can accommodate 3*256
values for color formats and in raw Bayer mode. In monochrome mode, the
array must be able to accommodate 1*256 values.
Return values
IS_CANT_COMMUNICATE_WITH_DRIVER
Communication with the driver failed because no driver
has been loaded.
An attempt to initialize or select the camera failed (no
camera connected or initialization error).
IS_INVALID_MEMORY_POINTER
Invalid pointer or invalid memory ID
One of the submitted parameters is outside the valid
range or is not supported for this sensor or is not
available in this mode.
An IO request from the uc480 driver failed. Possibly the
versions of the uc480_api.dll (API) and the driver file
(uc480_usb.sys) do not match.
Function executed successfully
Related functions
is_SetColorMode()
502
319
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