im=Image.open('test.jpg')#获得图像尺寸 w,h=im.sizeprint('Original image size: %sx%s'%(w,h))#缩放50%im.thumbnail((w//2, h//2))print('Resize image to: %sx%s'%(w//2, h//2))#把缩放后的图像用jpeg格式保存 im.save('thumbnail.jpg','jpe
Image模块中的方法resize()和thumbnail()用到了滤波器。 方法resize()的定义为:resize(size, filter=None)=> image from PIL import Imageim = Image.open("ccb.png")print(im.size)im_resize = im.resize((640,480))print(im_resize.size)输出:(800, 600)(640, 480) 对参数filter不赋值的话,方法resi...
rectangle def plot_image(image, title=''): pylab.title(title, size=20), pylab.imshow(image) pylab.axis('off') # comment this line if you want axis ticks im = rgb2gray(imread('../images/clock2.jpg')) im[im <= 0.5] = 0 # ...
5 Image.eval(f,i) -- applying a function f to each pixel of image i 6 Image.merge(mode,bandList) --Creates a multi-band image from a sequence of single-band images of equal size 以下是Image对象的全部方法: Top The ImageDraw Module 支持2D图像The ImageDraw module provide basic 2D graph...
我们首先创建一个QThread对象,然后使用SlowSearcher.moveToThread()方法将我们的SlowSearcher对象移动到新线程中。moveToThread()是QObject的一个方法,由任何子类QObject的类继承。 接下来,我们将搜索器的finished信号连接到线程的quit槽;这将导致线程在搜索完成时停止执行。由于搜索线程不是我们主要的执行线程的一部分,...
Resize work image:对图像进行缩放 Flip work image horizontally/vertically:对图像进行水平/竖直翻转 Edge detection on work image:对图像进行边缘检测 Sharpen work image:图像锐化 Binary work image and trigger:对图像进行二值化处理 3×3 / 5×5 filter on work image:使用3×3或5×5的模板对图像进行滤波...
y1, x0:x1]ifbbox[] >20andbbox[2] +20>width:cropped = img[int(bbox[1]):int(bbox[3]), int(bbox[] -20):int(bbox[2])] # 裁剪坐标为[y0:y1, x0:x1]path = 'cut1/'# 重定义图片的大小res = cv2.resize(cropped, (1000, 100), interpolation=cv2.INTER_CUBIC) # dsize=...
image_string = tf.read_file(filename) image_decoded = tf.image.decode_image(image_string) image_resized = tf.image.resize_images(image_decoded, [28, 28]) return image_resized, label # 图片文件的列表 filenames = tf.constant(["/var/data/image1.jpg", "/var/data/image2.jpg", ...]...
(u"MainWindow") MainWindow.resize(792, 457) icon = QIcon() icon.addFile(u":/image/images/uart_icon.ico", QSize(), QIcon.Normal, QIcon.Off) MainWindow.setWindowIcon(icon) self.centralwidget = QWidget(MainWindow) self.centralwidget.setObjectName(u"centralwidget") self.gridLayout_2 = Q...
cv2.rectangle(clone, (xA, yA), (xB, yB), (0, 255, 0), 2)# resize the ROI to a fixed size, then update the characters# dictionary, mapping the character name to the ROIroi = cv2.resize(roi, (36, 36)) chars[name] = roi# display the character ROI to our screencv2.imshow("...