Top "Image-preprocessing" questions

Numpy:zero mean data and standardization

I saw in tutorial (there were no further explanation) that we can process data to zero mean with x -= …

python numpy image-preprocessing
How to implement ZCA Whitening? Python

Im trying to implement ZCA whitening and found some articles to do it, but they are a bit confusing.. can …

python pca correlated image-preprocessing
How to use repeat() function when building data in Keras?

I am training a binary classifier on a dataset of cats and dogs: Total Dataset: 10000 images Training Dataset: 8000 images Validation/…

tensorflow keras deep-learning image-preprocessing
Convert RGB image to YUV and YCbCr color space image in Opencv Python

Can anyone help me to convert an RGB colour space image to YUV colour space image and to YCbCr colour …

python opencv image-processing opencv-python image-preprocessing
Error while resizing image: "error: (-215:Assertion failed) func != 0 in function 'resize'"

I'm trying to preprocess images dataset, represented in numpy array with images of shape (28, 28) by rescaling them to (10, 10). I wrote …

python cv2 image-preprocessing
Keras VGG16 preprocess_input modes

I'm using the Keras VGG16 model. I've seen it there is a preprocess_input method to use in conjunction with …

tensorflow keras deep-learning vgg-net image-preprocessing
How to apply normalization to images in testing phase when using keras ImageDataGenerator?

I'm trying to predict a new image using trained model. My accuracy is 95%. But the predict_classes always return the …

python machine-learning keras image-preprocessing
Is this the correct way of whitening an image in python?

I am trying to zero-center and whiten CIFAR10 dataset, but the result I get looks like random noise! Cifar10 dataset …

python image-preprocessing image-whitening