代码实现图像拼接处的平滑过渡效果,写出代码
时间: 2023-08-06 15:14:46 浏览: 246
图像拼接处的平滑过渡效果可以通过图像融合的方式实现。以下是基于OpenCV库实现的示例代码:
```python
import cv2
# 读取两张需要拼接的图像
img1 = cv2.imread('image1.jpg')
img2 = cv2.imread('image2.jpg')
# 获取两张图像的大小
h1, w1 = img1.shape[:2]
h2, w2 = img2.shape[:2]
# 计算拼接后图像的大小
h = max(h1, h2)
w = w1 + w2
# 创建一个空的拼接图像
dst = np.zeros((h, w, 3), dtype=np.uint8)
# 将第一张图像放到左侧
dst[:h1, :w1, :] = img1
# 将第二张图像放到右侧
dst[:h2, w1:, :] = img2
# 计算拼接处的重叠区域
overlap = min(w1, w2) // 2
# 创建一个线性渐变蒙版
mask = np.zeros((h, w), dtype=np.uint8)
mask[:, w1-overlap:w1+overlap] = np.tile(np.linspace(0, 255, 2*overlap), (h, 1))
# 应用蒙版实现平滑过渡
dst[:, w1-overlap:w1+overlap, :] = cv2.multiply(dst[:, w1-overlap:w1+overlap, :], cv2.cvtColor(cv2.cvtColor(mask, cv2.COLOR_GRAY2BGR), cv2.COLOR_BGR2BGRA) / 255.0)
dst[:, w1-overlap:w1+overlap, :] += cv2.multiply(img2[:, :overlap, :], cv2.cvtColor(cv2.cvtColor(255 - mask[:, w1-overlap:w1+overlap], cv2.COLOR_GRAY2BGR), cv2.COLOR_BGR2BGRA) / 255.0)
# 保存拼接后的图像
cv2.imwrite('result.jpg', dst)
```
上述代码实现了将两张图像水平拼接,并在重叠区域添加了线性渐变蒙版,从而实现了平滑过渡效果。其中,`cv2.multiply()`函数用于实现矩阵相乘,`cv2.cvtColor()`函数用于颜色空间转换,`np.tile()`函数用于复制数组,`np.linspace()`函数用于生成等差数列,`cv2.imwrite()`函数用于保存图像。