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how to run BING(salience detection) by python

asked 2017-10-15 20:46:52 -0500

Hello All, I would like to run BING to detect the object proposal in python. Here is my sample code.

import cv2
bing = cv2.saliency.ObjectnessBING_create()
bing.setTrainingPath(r'modelpath')
bing.setBase(2)
bing.setW(8)
bing.setNSS(2)
bing.setTrainingPath(r'modelpath')
img = cv2.imread('1.jpg')
ret = bing.computeSaliency(img.astype(np.float32))

However, I meet the following erros:

cv2.error: D:\Build\OpenCV\opencv_contrib-3.3.0\modules\saliency\src\BING\FilterTIG.cpp:74: error: (-215) w1f.cols * w1f.rows == D && w1f.type() == CV_32F && w1f.isContinuous() in function cv::saliency::ObjectnessBING::FilterTIG::update

I guess the last condition is not met. (w1f.isContinuous())

How to make the image in opencv to continuous? thanks in advance.

best, xueliang

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are you 250% sure, your image was read at all... ? please check again.

berak gravatar imageberak ( 2017-10-15 23:43:07 -0500 )edit

OF course, I can show the image by cv2.imshow(), and everything looks fine.

liuxueliang gravatar imageliuxueliang ( 2017-10-16 05:39:08 -0500 )edit

oh, wait, imho it expects a single channel (w1f.type() == CV_32F), while you have 3 ! try:

img = cv2.imread('1.jpg', 0)


i was wrong about this. the error is not connected to the input image, but about pretrained model data

berak gravatar imageberak ( 2017-10-16 07:20:39 -0500 )edit

Thanks for your attention on this question. There is nothing about the channel. After reading the source code, I find D is constant and is 64. But I don not know what is FilterTIG. void ObjectnessBING::FilterTIG::update( Mat &w1f ) {

liuxueliang gravatar imageliuxueliang ( 2017-10-17 06:35:44 -0500 )edit

exception is from here called from here

are you sure, your 'modelpath' is correct ? it should point here

berak gravatar imageberak ( 2017-10-17 07:00:30 -0500 )edit

can you do me a favour, and try with a wrong modelpath ? you should get the same exception. (which imho is a bug, that should have been caught earlier on)

so, if you could reproduce it, i'd be happy. ;)

berak gravatar imageberak ( 2017-10-17 07:34:44 -0500 )edit

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answered 2017-10-17 07:05:26 -0500

updated 2017-10-17 07:06:18 -0500

I know what is the problem, I just set maxbgr and hsv, but forget g,(the color space). Thank you very much.

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Asked: 2017-10-15 20:46:52 -0500

Seen: 503 times

Last updated: Oct 15 '17