PYTHON AND OPENCV

I need help scaling and centering my image.

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I have a good starter code, my image is in a folder with my python file so I am able to read in the image without the relative path. You may use whatever image you want.

THESE CHANGES NEED TO HAPPEN WITH CODE:

SCALING FACTOR BASED ON ORIGINAL IMAGE DIMENSIONS: parameter (1.3,1.5, etc.). Multiply the max dimension (width or height) of the original image by the scaling factor (n=s*maxDim). The new image should have dimensions nxn.

COPY ORIGINAL IMAGE INTO CENTER OF NEW IMAGE USING LOOPS

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import cv2 import numpy as np

# read in an image in opencv image = cv2.imread("dog.png")

# get size of an image numRows = image.shape[0] # height of image numCols = image.shape[1] # width of image print("size: ", numRows, numCols)

# create an empty image grid - size1: rows, size2: cols, 3 colors size1 = 600 size2 = 600 emptyIm = np.zeros ( (size1, size2, 3), np.float32)

# iterate through pixels and change colors for i in range(numRows): # height of the image, y coordinates for j in range(numCols): # width of the image, x coordinates # image[i][j][0]: blue # image[i][j][1]: green # image[i][j][2]: red # only keep green channel #image[i][j][0] = 0 #image[i][j][2] = 0

# copy blue channel into empty image emptyIm[i][j][0] = image[i][j][0]

# display an image #cv2.imshow("Displaying an image", image)

# display an image created from scratch cv2.imshow("Displaying an image", emptyIm/255.0)

cv2.waitKey(0) # not going to proceed until you hit "enter" cv2.destroyAllWindows() # closes all windows opened with "imshow"

# save an image cv2.imwrite("savedImage.png", emptyIm) print("saved")

Displaying an image