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Update add_watermark.py

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fix a small bug
This commit is contained in:
NNNNAI
2021-06-20 16:16:10 +08:00
parent df9fe56288
commit 390dff1044
1 changed files with 15 additions and 28 deletions
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util/add_watermark.py
+15 -28
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@@ -1,3 +1,4 @@
import cv2
import numpy as np
from PIL import Image
@@ -19,10 +20,10 @@ def rotate_image(image, angle, center = None, scale = 1.0):
return rotated
class watermark_image:
def __init__(self, logo_path, size=0.3, oritation="DR", margin=(5,20,20,100), angle=15, rgb_weight=(0,1,1.5), input_frame_shape=None) -> None:
def __init__(self, logo_path, size=0.3, oritation="DR", margin=(5,20,20,20), angle=15, rgb_weight=(0,1,1.5), input_frame_shape=None) -> None:
logo_image = cv2.imread(logo_path, cv2.IMREAD_UNCHANGED)
h,w,c = logo_image.shape
if angle%360 != 0:
new_h = w*math.sin(angle/180*math.pi) + h*math.cos(angle/180*math.pi)
pad_h = int((new_h-h)//2)
@@ -50,16 +51,11 @@ class watermark_image:
self.logo_image[:, :, 0] = self.logo_image[:, :, 0]*self.rgb_weight[2]
if input_frame_shape is not None:
if input_frame_shape[0] > input_frame_shape[1]:
logo_h = input_frame_shape[0] * self.size
ratio = logo_h / self.ori_shape[0]
logo_w = int(ratio * self.ori_shape[1])
logo_h = int(logo_h)
else:
logo_w = input_frame_shape[1] * self.size
ratio = logo_w / self.ori_shape[1]
logo_h = int(ratio * self.ori_shape[0])
logo_w = int(logo_w)
logo_w = input_frame_shape[1] * self.size
ratio = logo_w / self.ori_shape[1]
logo_h = int(ratio * self.ori_shape[0])
logo_w = int(logo_w)
size = (logo_w, logo_h)
self.logo_image = cv2.resize(self.logo_image, size, interpolation = cv2.INTER_CUBIC)
@@ -74,29 +70,21 @@ class watermark_image:
self.coor_h = input_frame_shape[0] - (logo_h + self.margin[1])
self.coor_w = self.margin[0]
else:
self.coor_h = input_frame_shape[0] - (logo_h + self.margin[1])
self.coor_h = input_frame_shape[0] - (logo_h + self.margin[3])
self.coor_w = input_frame_shape[1] - (logo_w + self.margin[2])
self.logo_w = logo_w
self.logo_h = logo_h
self.mask = self.logo_image[:,:,3]
self.mask = cv2.bitwise_not(self.mask//255)
def apply_frames(self, frame):
if not self.resized:
shape = frame.shape
if shape[0] > shape[1]:
logo_h = shape[0] * self.size
ratio = logo_h / self.ori_shape[0]
logo_w = int(ratio * self.ori_shape[1])
logo_h = int(logo_h)
else:
logo_w = shape[1] * self.size
ratio = logo_w / self.ori_shape[1]
logo_h = int(ratio * self.ori_shape[0])
logo_w = int(logo_w)
logo_w = shape[1] * self.size
ratio = logo_w / self.ori_shape[1]
logo_h = int(ratio * self.ori_shape[0])
logo_w = int(logo_w)
size = (logo_w, logo_h)
self.logo_image = cv2.resize(self.logo_image, size, interpolation = cv2.INTER_CUBIC)
@@ -111,14 +99,13 @@ class watermark_image:
self.coor_h = shape[0] - (logo_h + self.margin[1])
self.coor_w = self.margin[0]
else:
self.coor_h = shape[0] - (logo_h + self.margin[1])
self.coor_h = shape[0] - (logo_h + self.margin[3])
self.coor_w = shape[1] - (logo_w + self.margin[2])
self.logo_w = logo_w
self.logo_h = logo_h
self.mask = self.logo_image[:,:,3]
self.mask = cv2.bitwise_not(self.mask//255)
original_frame = frame[self.coor_h:(self.coor_h+self.logo_h), self.coor_w:(self.coor_w+self.logo_w),:]
blending_logo = cv2.add(self.logo_image[:,:,0:3],original_frame,mask = self.mask)
frame[self.coor_h:(self.coor_h+self.logo_h), self.coor_w:(self.coor_w+self.logo_w),:] = blending_logo