From 0f715ca84429f1ad3f57f0e783ff16953a555198 Mon Sep 17 00:00:00 2001
From: sarveswar1 <72076697+sarveswar1@users.noreply.github.com>
Date: Sat, 31 Oct 2020 17:54:06 +0530
Subject: [PATCH] opencv program to read and display image

---
 class01.py | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 class01.py

diff --git a/class01.py b/class01.py
new file mode 100644
index 0000000..f3448cc
--- /dev/null
+++ b/class01.py
@@ -0,0 +1,31 @@
+# reading image (storing image in 'img' variable) and writeing image (saving the image in detination folder)
+# image location (relative path) -> "res/lena.jpg"
+# destination to save images -> "result/*.jpg"
+
+# importing OpenCV, Numpy, Matplotlib.Pyplot
+import cv2
+import numpy as np
+import matplotlib.pyplot as plt
+
+# cv2.imread -> image read
+img = cv2.imread("res/lena.jpg", -1)
+# cv2.IMREAD_COLOR -> 1 --> color
+# cv2.IMREAD_GRAYSCALE -> 0 --> black and white
+# cv2.IMREAD_UNCHANGED -> -1 --> color + alpha scale
+
+cv2.imshow("Image", img)
+
+cv2.imwrite("result/lena_Unchanged.jpg", img)
+
+cv2.waitKey(0)
+cv2.destroyAllWindows()
+
+# using plt method to display image
+
+# cv2.imread -> B,G,R
+# plt.imshow -> R,G,B 
+# so we convert from B,G,R to R,G,B
+
+# img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
+# plt.imshow(img)
+# plt.show()
\ No newline at end of file