image-preprocessing Questions

14

import numpy as np from keras.preprocessing import image import matplotlib.pyplot as plt import matplotlib.image as mpimg import matplotlib.pyplot as plt import matplotlib.image as mpimg ...
Rodrick asked 25/5, 2022 at 19:43

3

Solved

I want to load the data from the directory where I have around 5000 images (type 'png'). But it returns me an error saying that there are no images when obviusly there are images. This code: width=...

4

Solved

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 a function for that: import cv2 as cv def resize_dataset(im...
Budd asked 30/3, 2019 at 6:46

1

Solved

I am training a binary classifier on a dataset of cats and dogs: Total Dataset: 10000 images Training Dataset: 8000 images Validation/Test Dataset: 2000 images The Jupyter notebook code: # Part 2...

2

Solved

Here's a receipt image that I've got and I've plotted it using matplotlib, # x1, y1, x2, y2, x3, y3, x4, y4 bbox_coords = [[650, 850], [1040, 850], [1040, 930], [650, 930]] image = cv2.imread(IMG...
Occupation asked 8/1, 2020 at 19:0

3

i have a binary image and I want to remove small white dots from the image using opencv python.You can refer to my problem here enter link description here My original image is i want the out...
Wigwam asked 31/7, 2019 at 5:28

3

Solved

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

1

I am training an image classification CNN using Keras. Using the ImageDataGenerator function, I apply some random transformations to the training images (e.g. rotation, shearing, zooming). My unde...
Goatherd asked 31/8, 2017 at 7:32

3

Solved

I am trying to zero-center and whiten CIFAR10 dataset, but the result I get looks like random noise! Cifar10 dataset contains 60,000 color images of size 32x32. The training set contains 50,000 and...
Anecdotage asked 13/1, 2017 at 13:28

1

Solved

Obviously this image is pretty tough as it is low clarity and is not a real word. However, with this code, I'm detecting nothing close: import pytesseract from PIL import Image, ImageEnhance, Im...

5

Im trying to implement ZCA whitening and found some articles to do it, but they are a bit confusing.. can someone shine a light for me? Any tip or help is appreciated! Here is the articles i rea...
Lilian asked 21/7, 2015 at 1:14

2

Solved

In order to improve OCR quality, I need to preprocess my scanned images. Sometimes I need to OCR the image with few pictures (components on the page and they are at different angles - for example, ...
Coquillage asked 1/2, 2018 at 7:39

4

Solved

I saw in tutorial (there were no further explanation) that we can process data to zero mean with x -= np.mean(x, axis=0) and normalize data with x /= np.std(x, axis=0). Can anyone elaborate on thes...
Misunderstanding asked 23/8, 2017 at 8:16

0

I am working with Keras 2.0.0 and I'd like to train a deep model with a huge amount of parameters on a GPU. As my data are big, I have to use the ImageDataGenerator. To be honest, I want to abuse ...
Sulfa asked 25/4, 2017 at 8:8
1

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