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bartbutenaers / node-red-contrib-plate-recognizer

A Node-RED node for license plate recognizing via platerecognizer.com
Apache License 2.0
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Enhancement Request: Output the buffer #5

Open jmorris644 opened 2 years ago

jmorris644 commented 2 years ago

Is it possible to also output the incoming buffer as part of the JSON output string? I need to do some follow-on image manipulation once I have the JSON info. For example, I want to crop the original image to just save the bounding box of the vehicle.

Optionally it would be nice to output the cropped vehicle image. This would be similar to what the current Stream SDK does.

bartbutenaers commented 2 years ago

Hi @jmorris644, I see now that I have not described this on my readme page. The input message is forwarded to the output. Suppose your image buffer arrives in the input image as msg.payload and your recognition result is stored (via output field also in msg.payload. Then your image in the message will be overwritten by your recognition results. But if you store e.g. your recognition results in msg.myresults, then your msg.payload should still contain your original input image... Bart

jmorris644 commented 2 years ago

That makes perfect sense.

bartbutenaers commented 2 years ago

Optionally it would be nice to output the cropped vehicle image.

Yes indeed that can be useful. But as a separate node, so it can be reused to crop the image output of other nodes also. Will put it on my todo list...

jmorris644 commented 2 years ago

I am currently using node-red-contrib-image-tools to do the cropping.