How to keep the original resolution of page images?

[esraa-abdelmaksoud]

Hello,

I've been using page.get_pixmap() to get pages as images for further processing. The problem is that it automatically changes the page height to 842 px. for any document. I controlled the output resolution using the dpi parameter and tried the matrix zooming, but I currently need to keep the original resolution as is. Controlling the output resolution using the dpi parameter results in having blurred scanned images if they were scanned at a low dpi.

How can I get pages as images in their originally scanned resolution?

Please keep in mind that I have read similar discussion questions, but they were mainly about controlling the output resolution not keeping the input resolution.

This is my code snippet:

doc = fitz.open(file_path)
for p in range(len(doc)):
     page = doc.load_page(p)
     pix = page.get_pixmap(dpi=300)

Thank you.

[JorjMcKie]

Document pages in general have no "natural" resolution. You are talking about the (scanned) image from which the page was created, right?
To find the scanned image's resolution, you must first locate it, then extract it to see the resolution values:

In [1]: import fitz
In [2]: doc = fitz.open("ocr-ed.pdf")
In [3]: page = doc[0]
In [4]: page.get_images()
Out[4]: [(12, 0, 1224, 1584, 8, 'DeviceRGB', '', 'R12', 'DCTDecode')]
In [5]: page.get_image_rects(12) # check if covering full page
Out[5]: [Rect(0.0, 0.0, 612.0, 792.0)]
In [6]: # true, so extract image to see its resolutions
In [7]: img = doc.extract_image(12)
In [8]: img["xres"], img["yres"]
Out[8]: (96, 96)
In [9]: # so you can render the page with dpi=96

[esraa-abdelmaksoud]

Thank you so much. It works perfectly!