img = Image.new('RGB', (width, height), (255, 255, 255)) draw = ImageDraw.Draw(img)
时间: 2023-10-03 07:07:11 浏览: 40
这是Python中使用Pillow库(Python Imaging Library)创建一张白色背景的图片,并创建一个绘画对象draw,可以用来在图片上绘制各种图形和文字。其中,'RGB'表示使用RGB三原色模式来表示颜色,width和height表示图片的宽度和高度,(255, 255, 255)表示白色的RGB值。通过ImageDraw.Draw(img)创建的draw对象可以使用各种方法来绘制图形和文字,例如draw.line(), draw.rectangle(), draw.text()等。
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import os import cv2 from PIL import Image, ImageDraw, ImageFont import numpy as np # 输入文本 text = "这是一个跑马灯视频" # 设置字体 font_size = 1000 font_path = "msyh.ttc" font = ImageFont.truetype(font_path, font_size) # 获取文本宽度 img = Image.new('RGB', (1, 1), color=(255, 255, 255)) draw = ImageDraw.Draw(img) text_width, text_height = draw.textsize(text, font) # 设置视频参数 width = text_width + 100 height = text_height + 50 fps = 60 seconds = 10 frames = fps * seconds # 创建视频 fourcc = cv2.VideoWriter_fourcc(*'mp4v') output_path = os.path.join("E:\Template\word", "output.mp4") video = cv2.VideoWriter(output_path, fourcc, fps, (width, height)) # 生成每一帧的图像 for i in range(frames): # 创建背景 background = Image.new('RGB', (width, height), color=(255, 0, 0)) # 创建文本 text_image = Image.new('RGB', (text_width, text_height), color=(255, 0, 0)) draw = ImageDraw.Draw(text_image) draw.text((0, 0), text, font=font, fill=(255, 255, 255)) # 将文本贴到背景上 x_offset = (i - frames) * (text_width + 100) // frames background.paste(text_image, (x_offset, 25)) # 将图像转换为视频帧 frame = cv2.cvtColor(np.array(background), cv2.COLOR_RGB2BGR) video.write(frame) # 释放视频 video.release() 帮我写优化python代码 根据文本生成跑马灯视频 红色背景 白色文本 视频1080P分辨率1920*1080 文本从右往左滚动
import os
import cv2
from PIL import Image, ImageDraw, ImageFont
import numpy as np
def create_video(text, font_path, font_size, output_path, fps=60, seconds=10, resolution=(1920, 1080), bg_color=(255, 0, 0), text_color=(255, 255, 255)):
# 获取文本宽度
font = ImageFont.truetype(font_path, font_size)
img = Image.new('RGB', (1, 1), color=(255, 255, 255))
draw = ImageDraw.Draw(img)
text_width, text_height = draw.textsize(text, font)
# 设置视频参数
width = resolution[0]
height = resolution[1]
frames = fps * seconds
# 创建视频
fourcc = cv2.VideoWriter_fourcc(*'mp4v')
video = cv2.VideoWriter(output_path, fourcc, fps, (width, height))
# 生成每一帧的图像
for i in range(frames):
# 创建背景
background = Image.new('RGB', (width, height), color=bg_color)
# 创建文本
text_image = Image.new('RGB', (text_width, text_height), color=bg_color)
draw = ImageDraw.Draw(text_image)
draw.text((0, 0), text, font=font, fill=text_color)
# 将文本贴到背景上
x_offset = (i - frames) * (text_width + 100) // frames
background.paste(text_image, (x_offset, (height-text_height)//2))
# 将图像转换为视频帧
frame = cv2.cvtColor(np.array(background), cv2.COLOR_RGB2BGR)
video.write(frame)
# 释放视频
video.release()
# 示例
text = "这是一个跑马灯视频"
font_path = "msyh.ttc"
font_size = 1000
output_path = os.path.join("E:\Template\word", "output.mp4")
fps = 60
seconds = 10
resolution = (1920, 1080)
bg_color = (255, 0, 0)
text_color = (255, 255, 255)
create_video(text, font_path, font_size, output_path, fps, seconds, resolution, bg_color, text_color)
帮我修改这段代码,使得箭头为空心的:img_dir = "/Users/wengjingjin/Desktop/annotation/org" img_files = sorted(os.listdir(img_dir)) # 创建新的空白图像 img1 = Image.open(os.path.join(img_dir, img_files[0])) img2 = Image.open(os.path.join(img_dir, img_files[1])) img3 = Image.open(os.path.join(img_dir, img_files[2])) img4 = Image.open(os.path.join(img_dir, img_files[3])) merge_img = Image.new('RGB', (img1.width + img2.width + 300, img2.height + img3.height + 300), (255, 255, 255)) # 将四幅图像粘贴到新图像上 merge_img.paste(img1, (0, 0)) merge_img.paste(img2, (img1.width + 300, 0)) merge_img.paste(img3, (img1.width + 300, img2.height + 300)) merge_img.paste(img4, (0, img1.height + 300)) # 添加数字标注 draw = ImageDraw.Draw(merge_img) draw.text((10, 10), "1", font=font, fill=(255, 255, 255)) draw.text((img1.width + 310, 10), "2", font=font, fill=(255, 255, 255)) draw.text((img1.width + 310, img2.height + 310), "3", font=font, fill=(255, 255, 255)) draw.text((10, img1.height + 310), "4", font=font, fill=(255, 255, 255)) # 添加箭头标注 arrow_size = 80 arrow_width = 40 arrow_draw = ImageDraw.Draw(merge_img) # 第一幅图到第二幅图的箭头 arrow_start = (img1.width, img1.height/2) arrow_end = (img1.width + 300, img1.height/2) arrow_draw.line((arrow_start[0], arrow_start[1], arrow_end[0] - arrow_size, arrow_end[1]), fill=(0, 0, 255), width=arrow_width) arrow_draw.polygon([(arrow_end[0] - arrow_size, arrow_end[1] - arrow_size), (arrow_end[0] - arrow_size, arrow_end[1] + arrow_size), (arrow_end[0], arrow_end[1])], fill=False, outline=(0, 0, 255), width=arrow_width)
您可以通过将 `arrow_draw.polygon` 函数的 `fill` 参数设置为 `False` 来绘制空心箭头。同时,您也需要将 `arrow_draw.line` 函数的宽度参数 `width` 改为箭头宽度的一半,来保证箭头的线和箭头的宽度相等。下面是修改后的代码:
``` python
import os
from PIL import Image, ImageDraw, ImageFont
img_dir = "/Users/wengjingjin/Desktop/annotation/org"
img_files = sorted(os.listdir(img_dir))
# 创建新的空白图像
img1 = Image.open(os.path.join(img_dir, img_files[0]))
img2 = Image.open(os.path.join(img_dir, img_files[1]))
img3 = Image.open(os.path.join(img_dir, img_files[2]))
img4 = Image.open(os.path.join(img_dir, img_files[3]))
merge_img = Image.new('RGB', (img1.width + img2.width + 300, img2.height + img3.height + 300), (255, 255, 255))
# 将四幅图像粘贴到新图像上
merge_img.paste(img1, (0, 0))
merge_img.paste(img2, (img1.width + 300, 0))
merge_img.paste(img3, (img1.width + 300, img2.height + 300))
merge_img.paste(img4, (0, img1.height + 300))
# 添加数字标注
font = ImageFont.truetype("arial.ttf", 50)
draw = ImageDraw.Draw(merge_img)
draw.text((10, 10), "1", font=font, fill=(255, 255, 255))
draw.text((img1.width + 310, 10), "2", font=font, fill=(255, 255, 255))
draw.text((img1.width + 310, img2.height + 310), "3", font=font, fill=(255, 255, 255))
draw.text((10, img1.height + 310), "4", font=font, fill=(255, 255, 255))
# 添加箭头标注
arrow_size = 80
arrow_width = 20 # 修改箭头线的宽度为箭头宽度的一半
arrow_draw = ImageDraw.Draw(merge_img)
# 第一幅图到第二幅图的箭头
arrow_start = (img1.width, img1.height/2)
arrow_end = (img1.width + 300, img1.height/2)
arrow_draw.line((arrow_start[0], arrow_start[1], arrow_end[0] - arrow_size, arrow_end[1]), fill=(0, 0, 255), width=arrow_width)
arrow_draw.polygon([(arrow_end[0] - arrow_size, arrow_end[1] - arrow_size),
(arrow_end[0] - arrow_size, arrow_end[1] + arrow_size),
(arrow_end[0], arrow_end[1])],
fill=False, outline=(0, 0, 255), width=arrow_width)
# 显示图像
merge_img.show()
```
在这个例子中,我们将 `arrow_width` 参数从原来的40改为20,来保证箭头的线和箭头的宽度相等。同时,我们将 `arrow_draw.polygon` 函数的 `fill` 参数设置为 `False`,来绘制空心箭头。