Python | OCR on All the Images present in a Folder Simultaneously

11 Nov, 2019
If you have a folder full of images that has some text which needs to be extracted into a separate folder with the corresponding image file name or in a single file, then this is the perfect code you are looking for.
This article not only gives you the basis of OCR (Optical Character Recognition) but also helps you to create output.txt file for every image inside the main folder and save it in some predetermined direction.
Libraries Needed –
pip3 install pillow
pip3 install os-sys
You will also need the tesseract-oct and pytesseract library. The tesseract-ocr can be downloaded and installed from here and the pytesseract can be installed using pip3 install pytesseract
# Python program to extract text from all the images in a folder# storing the text in corresponding files in a different folderfrom PIL import Imageimport pytesseract as ptimport os      def main():    # path for the folder for getting the raw images    path ="E:\\GeeksforGeeks\\images"      # path for the folder for getting the output    tempPath ="E:\\GeeksforGeeks\\textFiles"      # iterating the images inside the folder    for imageName in os.listdir(path):                      inputPath = os.path.join(path, imageName)        img = Image.open(inputPath)          # applying ocr using pytesseract for python        text = pt.image_to_string(img, lang ="eng")          # for removing the .jpg from the imagePath        imagePath = imagePath[0:-4]          fullTempPath = os.path.join(tempPath, 'time_'+imageName+".txt")        print(text)          # saving the  text for every image in a separate .txt file        file1 = open(fullTempPath, "w")        file1.write(text)        file1.close()   if __name__ == '__main__':    main()
Input Image :
image_sample1
Output :
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If you want to store all the text from the images in a single output file then the code will be a little different. The main difference is that the mode of the file in which we will be writing will change to “+a” to append the text and create the output.txt file if it is not present already.
# extract text from all the images in a folder# storing the text in a single filefrom PIL import Imageimport pytesseract as ptimport os      def main():    # path for the folder for getting the raw images    path ="E:\\GeeksforGeeks\\images"      # link to the file in which output needs to be kept    fullTempPath ="E:\\GeeksforGeeks\\output\\outputFile.txt"      # iterating the images inside the folder    for imageName in os.listdir(path):        inputPath = os.path.join(path, imageName)        img = Image.open(inputPath)          # applying ocr using pytesseract for python        text = pt.image_to_string(img, lang ="eng")          # saving the  text for appending it to the output.txt file        # a + parameter used for creating the file if not present        # and if present then append the text content        file1 = open(fullTempPath, "a+")          # providing the name of the image        file1.write(imageName+"\n")          # providing the content in the image        file1.write(text+"\n")        file1.close()       # for printing the output file    file2 = open(fullTempPath, 'r')    print(file2.read())    file2.close()            if __name__ == '__main__':    main()
Input Image :
image_sample1
image_sample2
Output:
It gave an output of the single file created after extracting all the information from the image inside the folder. The format of the file goes like this –
Name of the image
Content of the image
Name of the next image and so on .....
Image-Processing
Python-pil
Python
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