@trihook @munuluka
after put a picture in your raspberry in the folder /home/pi/Pictures ( off.png picture in this example) :
try this flow :
[{"id":"43f3ac9.5214a54","type":"inject","z":"1dec9bbc.37a314","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":90,"y":2130,"wires":[["7fe75716.574148"]]},{"id":"49b00b00.d657b4","type":"ui_template","z":"1dec9bbc.37a314","group":"b930fe7e.897db","name":"","order":1,"width":"6","height":"6","format":"\n \n <img width=\"100%\" height=\"100%\" alt=\"Image not found\" src=\"data:image/png;base64,{{msg.payload}}\" />\n","storeOutMessages":true,"fwdInMessages":true,"templateScope":"local","x":610,"y":2130,"wires":[[]]},{"id":"4a8daeb2.4a1a7","type":"base64","z":"1dec9bbc.37a314","name":"","action":"str","property":"payload","x":470,"y":2130,"wires":[["49b00b00.d657b4"]]},{"id":"7fe75716.574148","type":"file in","z":"1dec9bbc.37a314","name":"","filename":"/home/pi/Pictures/off.png","format":"","chunk":false,"sendError":false,"encoding":"none","x":280,"y":2130,"wires":[["4a8daeb2.4a1a7"]]},{"id":"b930fe7e.897db","type":"ui_group","z":"","name":"picture","tab":"250de740.57ee78","order":9,"disp":true,"width":"6","collapse":false},{"id":"250de740.57ee78","type":"ui_tab","z":"","name":"Dashboard","icon":"dashboard","order":1,"disabled":false,"hidden":false}]
this look like this :
and the result in Dashboard:
