cv2有cv2.cvtColor()函数 numpy有numpy.asarray()函数 值得注意的是cv2用的是BGR,PIL用的是RGB #-*- coding=utf-8 -*-importosimportcv2fromPILimportImage'''opencv中图片格式为BGR pil中为RGB,需要转换一下'''importnumpy as npdefnumpy_to_cv(): image= np.zeros((300, 300, 1), dtype=np.uint8...
def cv2_show_Image_image(image): image0 = cv2.cvtColor(np.asarray(image), cv2.COLOR_RGB2BGR) # 将Image格式的图片转成np进而转换成cv2格式 cv2.namedWindow('image', 0) # 命名一个窗口 cv2.resizeWindow('image', 600, 500) # 将窗口大小进行调整,这两部主要是为了防止图片过大,屏幕显示不下 c...
3.2 Image.open()转成cv2.imread():np.array() 例: importcv2fromPILimportImageimportnumpyasnp img_PIL = Image.open('img_path') img_cv2 = np.array(img_PIL)# 方法1img_cv2 = img_cv2[:, :, ::-1]# 方法2img_cv2 = cv2.cvtColor(img_cv2, cv2.COLOR_RGB2BGR) 总结:cv2.imread()读出的...
from PIL import Image, ImageDraw, ImageFont #pip install pillow#由于cv2.putText()不支持汉字,把图像里加入需要显示的文字,可以为汉字 def cvtopil(img,posion,txt):#图像数组,文字位置,文字内容 pil_im = Image.fromarray(img) draw = ImageDraw.Draw(pil_im) font = ImageFont.truetype("simhei.ttf",...
defreadImg(im_fn):im=cv2.imread(im_fn)ifim is None:print('{} cv2.imread failed'.format(im_fn))tmp=imageio.mimread(im_fn)iftmp is not None:imt=np.array(tmp)imt=imt[0]im=imt[:,:,0:3]returnim 代码语言:javascript 代码运行次数:0 ...
from PIL import Image from PIL import ImageEnhance from skimage import exposure #原始图像 image = Image.open('lena.jpg') image.show() #亮度增强 enh_bri = ImageEnhance.Brightness(image) brightness = 1.5 image_brightened = enh_bri.enhance(brightness) image_brightened.show() #色度增强 enh_col ...
importrandomdefsp_noise(image,prob):'''添加椒盐噪声prob:噪声比例'''output=np.zeros(image.shape,np.uint8)thres=1-probforiinrange(image.shape[0]):forjinrange(image.shape[1]):rdn=random.random()ifrdn<prob:output[i][j]=0elifrdn>thres:output[i][j]=255else:output[i][j]=image[i][j...
我们从 OpenCV官网 的Miscellaneous Image Transformations 上,可查到 cv2.cvtColor 这个api的定义如下: cvtColor Converts an image from one color space to another. C++: void cvtColor(InputArray src, OutputArray dst, int code, int dstCn=0 ) Python...
import socket import threading from _thread import * import cv2 import numpy as np srvr = socket.socket(socket.AF_INET, socket.SOCK_STREAM) server_ip = socket.gethostbyname(socket.gethostname()) port = 9999 client = [] try: srvr.bind((server_ip, port)) except socket.error as e: print...
importmatplotlib.pyplotaspltfromPILimportImageimportnumpyasnp img = Image.open('test.png') img_gray = img.convert('L')#转换成灰度图像img = np.array(img) img_gray = np.array(img_gray) plt.imshow(img)# or plt.imshow(img / 255.0),matplotlib和matlab一样,如果是float类型的图像,范围是0-1...