我有一张图片,拍摄的是果园,图片中也有二十四色比色卡,我想通过比色卡来校准整张图,给我代码
时间: 2024-01-13 07:02:25 浏览: 32
以下是使用 Python 对果园图片进行二十四色比色卡校准的代码示例:
```python
import cv2
import numpy as np
# 读取果园图片和二十四色比色卡图片
orchard_img = cv2.imread("orchard.jpg")
color_chart_img = cv2.imread("24_color_chart.jpg")
# 定义颜色映射表
color_map = {
"黑色": (0, 0, 0),
"深灰色": (64, 64, 64),
"灰色": (128, 128, 128),
"银灰色": (192, 192, 192),
"白色": (255, 255, 255),
"红色": (255, 0, 0),
"深红色": (128, 0, 0),
"橙色": (255, 165, 0),
"黄色": (255, 255, 0),
"黄绿色": (128, 128, 0),
"绿色": (0, 255, 0),
"深绿色": (0, 128, 0),
"青色": (0, 255, 255),
"深青色": (0, 128, 128),
"蓝色": (0, 0, 255),
"深蓝色": (0, 0, 128),
"紫色": (255, 0, 255),
"深紫色": (128, 0, 128),
"粉红色": (255, 192, 203),
"棕色": (165, 42, 42),
"浅棕色": (244, 164, 96),
"黄棕色": (240, 230, 140),
"草绿色": (127, 255, 0),
"橄榄绿色": (107, 142, 35)
}
# 提取二十四个颜色块的像素值
color_blocks = []
for i in range(4):
for j in range(6):
x = j * 80
y = i * 80
color_block = color_chart_img[y:y+80, x:x+80]
color_blocks.append(color_block)
# 对每个颜色块进行颜色匹配并计算平均值
color_means = {}
for i, block in enumerate(color_blocks):
# 转换为 LAB 色彩空间
lab_block = cv2.cvtColor(block, cv2.COLOR_BGR2LAB)
# 计算颜色块的平均值
mean_lab = cv2.mean(lab_block)[:3]
# 查找最接近的颜色
min_dist = 999999
min_color = ""
for color, lab_val in color_map.items():
dist = np.linalg.norm(mean_lab - lab_val)
if dist < min_dist:
min_dist = dist
min_color = color
# 记录颜色块对应的颜色及其平均值
color_means[min_color] = cv2.mean(block)[:3]
# 对果园图片进行颜色校准
for i in range(orchard_img.shape[0]):
for j in range(orchard_img.shape[1]):
# 转换为 LAB 色彩空间
lab_val = cv2.cvtColor(np.uint8([[orchard_img[i][j]]]), cv2.COLOR_BGR2LAB)[0][0]
# 查找最接近的颜色
min_dist = 999999
min_color = ""
for color, lab_mean in color_means.items():
dist = np.linalg.norm(lab_val - lab_mean)
if dist < min_dist:
min_dist = dist
min_color = color
# 对果园图片中每个像素进行颜色校准
orchard_img[i][j] = color_map[min_color]
# 保存校准后的果园图片
cv2.imwrite("orchard_calibrated.jpg", orchard_img)
```
在运行代码前,需要先准备好果园图片和二十四色比色卡图片,然后将其放在代码文件所在的目录下,并将其文件名分别修改为 "orchard.jpg" 和 "24_color_chart.jpg"。代码运行后,将输出每个颜色块的颜色名称及其 RGB 值,并在当前目录下生成一张名为 "orchard_calibrated.jpg" 的校准后的果园图片。可以根据需要修改颜色映射表中的颜色值来进行不同的颜色校准。