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2025-09-23 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Internet Technology >
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This article is about how to use OpenCV to load images and display them on the screen. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.
Picture_display.cpp:
# include
# include
# include
# include
Int main (int argc, char * * argv)
{
IplImage* img = cvLoadImage (argv [1])
CvNamedWindow ("Rayeager PX2", CV_WINDOW_AUTOSIZE)
CvShowImage ("Rayeager PX2", img)
CvWaitKey (0)
CvReleaseImage & img)
CvDestroyWindow ("Rayeager PX2")
}
Makefile:
INCLUDE = $(shell pkg-config-- cflags opencv)
LIBS = $(shell pkg-config-- libs opencv)
SOURCES = picture_display.cpp
# Target file
OBJECTS = $(SOURCES:.cpp=.o)
# executable file
TARGET = picture_display
(TARGET): $(OBJECTS)
Gmail +-o $(TARGET) $(OBJECTS)-I $(INCLUDE) $(LIBS)
(OBJECTS): $(SOURCES)
Gmail +-c $(SOURCES)
Clean:
Rm $(OBJECTS) $(TARGET)
# compilation rule $@ represents the target file $< represents the first dependent file
%. O:%.cpp
Gmail +-I $(INCLUDE)-o $@-c $
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