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Today, the editor will share with you the relevant knowledge points about how to use Python to send holiday wishes to teachers. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article.

Sunflower

Sunflower language includes: faith, brilliance, loyalty, etc., very suitable for teachers, let's first draw a simple sunflower.

The implementation code is as follows:

Turtle.setup (600,600,80 80) turtle.pencolor ("yellow") turtle.pensize (4) turtle.penup () turtle.fd (- 150) turtle.pendown () for i in range (18): turtle.fd (300) turtle.left (100) turtle.fd (90) turtle.pensize (8) turtle.pencolor ("green") turtle.fd (400) turtle.penup (6) turtle.pendown () # draw leaves turtle.fd (- 250,250) turtle.seth (45) turtle.circle (- 130th) 60) turtle.seth turtle.circle (- 130,60) turtle.seth (135,135) turtle.circle (130,60) turtle.seth (- 45) turtle.circle (130,60) turtle.done () greeting card

We can also use Python to add some text to the photos to make greeting cards.

The main implementation code is:

Img = cv2.imread ('test.png') mask = np.zeros (img.shape [: 2], np.uint8) size = (1,65) bgd = np.zeros (size, np.float64) fgd = np.zeros (size, np.float64) rect = (1,1, img.shape [1], img.shape [0]) cv2.grabCut (img, mask, rect, bgd, fgd, 10, cv2.GC_INIT_WITH_RECT) mask2 = np.where (mask = 2) | (mask = 0), 1 Img = img.astype (np.int32) img * = mask2 [:,:, np.newaxis] IMG [IMG > 255] = 255img = img.astype (np.uint8) img = cv2.cvtColor (img, cv2.COLOR_BGR2RGB) img = Image.fromarray (img, 'RGB') img.save (' test1.jpg') fp = open (r "word.txt", "r" Encoding= "utf-8") text = fp.read () mask_pic=np.array (Image.open (r "test1.jpg")) wordcloud = WordCloud (font_path='hyr3gjm.ttf',mask=mask_pic,max_words=200). Generate (text) image=wordcloud.to_image () image.save ("wordcloud2.png") cloud_data = np.array (image) alpha = np.copy (cloud_data [:,:, 0]) alpha [alpha > 0] = 255new_image = Image.fromarray (np.dstack ((cloud_data) Alpha)) card = Image.open ("test.png") card = card.convert ("RGBA") card.paste (new_image, (0Power0), mask=new_image) card.save ("card.png") Photo Wall

We can also use Python to make some photos into text-effect photo walls.

The main implementation code is:

# def char2bit (textStr): KEYS = [0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02] for converting characters into Chinese character libraries 0x01] target = [] global count count = 0 for x in range (len (textStr)): text = textStr [x] rect_list = [] * 16 for i in range (16): rect_list.append ([] * 16) gb2312 = text.encode ('gb2312') hex_str = binascii.b2a_hex (gb2312) result = str (hex_str) Encoding='utf-8') area = eval ('0x' + result [: 2])-0xA0 index = eval (' 0x' + result [2:])-0xA0 offset = (94 * (area-1) + (index-1)) * 32 font_rect = None with open ("HZK16") "rb") as f: f.seek (offset) font_rect = f.read (32) for k in range (len (font_rect) / / 2): row_list = rect_ list [k] for j in range (2): for i in range (8): asc = font_ * 2 + j] flag = asc & KEYS [I] row_list.append (flag) output = [] for row in rect_list: for i in row: if I: output.append ('1') count+=1 else: Output.append ('0') target.append ('. Join (output)) return target# generates picture text def head2char (workspace) Folder,self Outlist): # transfer the work path to the avatar folder os.chdir (folder) # get the list of avatars in the folder imgList = os.listdir (folder) # get the number of avatars numImages = len (imgList) # set the size of the avatar after cropping eachSize = 100 # variable n is used to cycle through the avatar image nportrait 0 # variable count is used for The resulting word picture number count = 0 # initializes the color list For background shading colorlist = ['# FFFACD','#F0FFFF','#BFEFFF','#b7facd','#ffe7cc','#fbccff','#d1ffb8','#febec0' '# E0EEE0'] # index is used to change the background color of different words index = 0 # the lattice information of each item corresponds to different words for item in outlist: # change the work path to the folder where the avatar is located os.chdir (folder) # create a new canvas with background color 16 * 16 lattice, each point is filled with 2 * 2 avatars, so the length is 16 * 2 * 100 canvas = Image.new ('RGB', (3200, 3200), colorlist [index]) # create a new canvas # index transform, which is used to transform the background color index = (index+1)% 9 count + = 1 # each 16 * 16 dot matrix Fill for i in range (16x16) with four 100x100 avatars: # Lattice information is 1 That is to say, the word if item [I] = = "1": # read four consecutive avatars x1 = n% len (imgList) x2 = (nasty 1)% len (imgList) x3 = (nasty 2)% len (imgList) x4 = (nasty 3) % len (imgList) # the following four groups of try Fill the four avatars you read into a corresponding point on the drawing board # the picture in the upper left corner at the dot matrix 1 try 4: # Open the picture img = Image.open (imgList [x1]) except IOError: print ("one picture failed to read Replaced ") img = Image.open (self) finally: # reduced image img = img.resize ((eachSize, eachSize), Image.ANTIALIAS) # mosaic image canvas.paste (img, (I% 16) * 2 * eachSize (I / / 16) * 2 * eachSize) # the image in the upper right corner of the dot matrix 2 try 4 try: img = Image.open (imgList [x2]) except IOError: print ("1 image failed to read Replaced with alternate image ") img = Image.open (self) finally: img = img.resize ((eachSize, eachSize), Image.ANTIALIAS) canvas.paste (img, ((I% 16) * 2 + 1) * eachSize (I / / 16) * 2 * eachSize) # the image in the lower left corner of the dot matrix 3 try 4 try: img = Image.open (imgList [x3]) except IOError: print ("1 image failed to read Replaced with alternate image ") img = Image.open (self) finally: img = img.resize ((eachSize, eachSize), Image.ANTIALIAS) canvas.paste (img, (I% 16) * 2 * eachSize ((I / / 16) * 2 + 1) * eachSize) # the image in the lower right corner at the lattice 4 try: img = Image.open (imgList [x4]) except IOError: print ("one image failed to read Replaced with alternate image ") img = Image.open (self) finally: img = img.resize ((eachSize, eachSize), Image.ANTIALIAS) canvas.paste (img, ((I% 16) * 2 + 1) * eachSize ((I / / 16) * 2 + 1) * eachSize) # adjust n to read the subsequent picture n = (nim4)% len (imgList) os.chdir (workspace) # create a folder to store the output if not os.path.exists ('output'): os.mkdir (' output') Os.chdir ('output') # stores the stitched pictures Quality for picture quality, 1-100100 highest canvas.save ('result%d.jpg'% count, quality=100) above is "how to use Python to send holiday wishes to teachers" all the content of this article, thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.

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