In text_detection.cpp samples image where result are print must not be original image.

Sometime previous result are given to recognizer models
without clone

with

way to reproduce

opencv_dnn-sample_text_detection --rgb=1 -i="C:\lib\opencv_zoo\models\text_detection_db\examples\gsoc.jpg" --dmp=C:\dnn_models\frozen_east_text_detection.pb --rmp=C:\dnn_models\crnn_cs.onnx