Various discussion boards for XnView and related products
https://newsgroup.xnview.com/
Code: Select all
nconvert -quiet -out tiff
secret options!
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nconvert -no_auto_rotate -out tiffCode: Select all
nconvert -out tiff -no_auto_rotate
It's weird, exiftool seems to cause the same behavior. I thought if I stripped the file of all the metadata it would behave but it rotated the image as well usingCode: Select all
exiftool -all= 
These pictures were taken with my phone and apparently holding your phone sideways results in your photos being taken correctly and holding your phone straight up and down results in them being rotated but software doesn't reflect this for some reason.
If anyone finds themselves in the same boat. Test on copies first. Python code.Code: Select all
from PIL import Image
import os
def get_image_orientation(image_path):
# Open the image file
with Image.open(image_path) as img:
try:
# Get the EXIF information
exif = img._getexif()
if exif is not None:
# Check for the orientation tag (tag number 0x0112)
if 0x0112 in exif:
orientation = exif[0x0112]
# Rotate the image based on the orientation
if orientation == 3:
img = img.rotate(180, expand=True)
elif orientation == 6:
img = img.rotate(270, expand=True)
elif orientation == 8:
img = img.rotate(90, expand=True)
# Update the EXIF information with the new orientation
img = img._getexif()
img[0x0112] = 1
# Save the rotated image
img.save(image_path)
return "Normal"
except AttributeError:
pass
# If orientation information is not available or invalid, return None
return None
def scan_directory(directory_path):
# Iterate over all files in the directory
for filename in os.listdir(directory_path):
file_path = os.path.join(directory_path, filename)
# Check if the file is an image
if os.path.isfile(file_path) and is_image_file(filename):
# Check the image orientation
orientation = get_image_orientation(file_path)
if orientation is None:
continue #print(f"{filename}: not rotated (orientation information not available)")
elif orientation == "Normal":
continue #print(f"{filename}: not rotated")
else:
print(f"{filename}: rotated")
def is_image_file(filename):
# Check if the file extension corresponds to an image format
image_extensions = [".jpg", ".jpeg", ".png", ".gif", ".bmp"]
return any(filename.lower().endswith(ext) for ext in image_extensions)
# Provide the path to the directory you want to scan
directory_path = "path/to/directory"
scan_directory(directory_path)