adityashaha/cbir-using-cdh

The project is an attempt to implement the paper Content Based Image Retrieval using Color Difference Histogram by Guang-Hai Liu et all. in Python

cbir-using-cdh's Issues

In my code I'm using CDH code to run，but there was a error. I don't know how to fix it.

File "D:\Python\PyCharm\rsir\pyimagesearch\color_CDH.py", line 190, in getHist
ori = maxgrad_and_mingrad_Lab(lab, onum, width, height)
File "D:\Python\PyCharm\rsir\pyimagesearch\color_CDH.py", line 52, in maxgrad_and_mingrad_Lab
G1 = math.sqrt(0.5 * ((gxx + gyy) + (gxx - gyy) * math.cos(2.0 * theta) + 2.0 * gxy * math.sin(2.0 * theta)))
ValueError: math domain error

Add a code for retrieval of images from the database

Add a python code and a jupyter notebook for retrieval of the images stored in the database.

• Use the distance matrix to compare the histograms of the images
• Use mongoDB as the database

cant access the database via the input image entry

i can't simply access the added CDH json database and Corel image database viah the 'CBIR Using Color Difference Histogram - Retrieval.ipynb' code, i did exactly as you said, saved the database in the mongodb and the folder CDH with the necessary json files are stored there, and then i still get the error below, i dont know what else should i do? and also the images are all separated by _ in middle but you just entered 690 and accessed the image easily, did you rename all of them manually?