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Italian text extract from image with OpenCV and tessaract python

I have tried this way to workaround:
from pytesseract import pytesseract
from PIL import Image
img = Image.open('img.jpg')
text = pytesseract.image_to_string(img, config='')
# Displaying the extracted text
print(text[:-1])
But this code does not extract all the text.
Here is the output output

Can't extract text from an image with python OCR pytesseract

I'm trying to extract texts from some images. It worked for hundreds of other images but in some cases it doesn't find any texts. In order to optimize the images for extraction phase, all images are converted to black and white. All of their backgrounds are white and others are black such as icons, texts etc.
For example it worked for below image and succesfully found 'Sleep Timer' text in the image. I'm not sure if it's relevant but size of the below image with 'Sleep Timer' text is 320 × 351
But for the below image it doesn't find any text at all. Image size for this one is 161 × 320.
Since I couldn't find the reason, I tried to resize the image but it didn't work.
Here is my code:
from pytesseract import Output
import pytesseract
import cv2
image = cv2.imread('imagePath')
rgb = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
results = pytesseract.image_to_data(rgb, output_type=Output.DICT)
for i in range(0, len(results["text"])):
text = results["text"][i]
conf = int(results["conf"][i])
print("Confidence: {}".format(conf))
print("Text: {}".format(text))
print("")

It is working for me I tested:
import pytesseract
print(pytesseract.image_to_string('../images/grmgrm.jfif'))
results = pytesseract.image_to_data('../images/grmgrm.jfif', output_type=pytesseract.Output.DICT)
print(results)
Are you getting an error? Show us the error you are getting.

How to preserve the original colors of an image after adding text to it using PIL Python?

I am trying to add some text on my image using PIL, see the code below,
from PIL import Image
from PIL import ImageFont
from PIL import ImageDraw
import sys
image = Image.open('image.png')
draw = ImageDraw.Draw(image)
font = ImageFont.truetype('arial',40)
draw.text((700, 470),'Text',(0,0,0),font=font)
img.save('out-image.png','PNG')
But I lost the original colors of the image, see below images,
Original Image
After adding text
How I can preserve the original colors.
Thank You

That looks like a bug in PIL to me. I think it is because your image is palettised and the draw.text() is messing up the palette.
For a work-around, you can convert to an RGB image when you open it to avoid palette issues. Change to this:
image = Image.open('image.png').convert('RGB')

How to extract tabular data from images?

I have some sample images. How to extract tabular data from images and store it into JSON format?

Use pytesseract. The code will be something like this.
You can try different modifications .
My code may not solve the whole problem .It is just an example code ,this will work for text in black but for blue and any other colour you will have to create a mask accordingly and then extract that data.
import pytesseract
from PIL import Image, ImageEnhance, ImageFilter
im = Image.open("temp.jpg")
maxsize = (2024, 2024)
im=im.thumbnail(maxsize, PIL.Image.ANTIALIAS)
im = im.filter(ImageFilter.MedianFilter())
enhancer = ImageEnhance.Contrast(im)
im = enhancer.enhance(2)
im = im.convert('1')
im.save('mod_file.jpg')
text = pytesseract.image_to_string(Image.open('mod_file.jpg'))
print(text)
For example for red colour detection you can refer to this post.
After getting the red text binarize the image and then run
text = pytesseract.image_to_string(Image.open('red_text_file.jpg'))
Similerly you will have to do the same process for blue and so on.
I believe you can easily try to do it yorself, just play around with some values.

How do I change my image format?

I'm trying to blur an image using PIL:
from PIL import Image
from PIL import ImageFilter
im = Image.open("plot.png")
im = im.filter(ImageFilter.BLUR)
When I do im.show() and save it to my hard drive, it saves as a BMP file, which is incompatible with the place where I'm trying to upload it. How do I change the file format from BMP to something else that is compatible?

Just use the save() function directly:
from PIL import Image
from PIL import ImageFilter
im = Image.open("plot.png")
im = im.filter(ImageFilter.BLUR)
im.save("saved.jpg")
This function supports many formats, as explained in the documentation.