The operator generates a signal pulse when the start of an input image line is detected. The operator input is an image stream. The operator waits for the first pixel at each input image line. When the first pixel is detected, a signal pulse of one clock cycle is output. See the following figure for explanation:
Note that empty line can exist in VisualApplets. For empty lines, the operator cannot find a first pixel. In this case, the operator will output a pulse at the end of the line.
This operator is excluded from the VisualApplets functional simulation.
|Input Link||I, image data input|
|Output Link||O, signal output|
The use of operator LineStartToSignal is shown in the following examples:
A VisualApplets design example where all functions of operator TrgPortLine are rebuild using other signal processing operators. Allows custom trigger modules.