JPG Aspect Ratio

[Anakin]

Hello

I don't know if this is the right forum. I apologise if not.

I have taken 1000s of images off my iPhone and want to see their aspect ratios. I can sort them in windows by dimension etc, but not aspect ratio. Most of them are 4:3, which is the ratio I want. I want to be able to see which ones aren't 4:3 so I can edit them. Is there a quick way of doing this and seeing aspect ratios without having to do the math for each and every one?

Thanks

Ani

[_Al_]

You can use Python,
you define:
path to mediainfo
name of directory
searched aspect ratio
extension for those files

then one subdirectory will be created with media files (and those extensions) that have desired aspect ratio and other directory with rest of those files of the same extension

from subprocess import Popen, PIPE
import json
from pathlib import Path
import shutil

#https://mediaarea.net/en/MediaInfo/Download/Windows
MEDIAINFO = r"F:\tools\MediaInfo_CLI_22.09_Windows_x64\MediaInfo.exe"
DIRECTORY = r"F:\testing aspet ratio for images\images"
EXTENSION = "PNG"
SEARCHED_ASPECT_RATIO = 16/9


generator_of_paths = Path(DIRECTORY).glob(f'*.{EXTENSION}')   #generator is a better choise as oppose to using list
dir_searched_ar = Path(DIRECTORY) / 'searched_ar_files'
dir_searched_ar.mkdir(parents=True, exist_ok=True) #creates that subdirectory if it does not exist
dir_rest = Path(DIRECTORY) / 'rest_of_files'
dir_rest.mkdir(parents=True, exist_ok=True)

for path in generator_of_paths:
    cmd  = f'"{MEDIAINFO}" --Output=JSON  "{path}"'
    p = Popen(cmd, stderr=PIPE, stdout=PIPE)
    stdout, stderr = p.communicate()
    data = json.loads(stdout)  #conversion from stdout(it is json format), to python's dictionary object
##    print(json.dumps(data, indent=2)) #use this, it prints pretty, formatted, to orient yourself in that dictionary
    width =  data['media']['track'][1]['Width']  #[0] means general section, [1] is for file properties if image or video
    height = data['media']['track'][1]['Height']
    ar = int(width)/int(height)
    if SEARCHED_ASPECT_RATIO-0.1 < ar < SEARCHED_ASPECT_RATIO+0.1:
        shutil.copy2(path, dir_searched_ar)
    else:
        shutil.copy2(path, dir_rest)

[Attachment 68274 - Click to enlarge]

[jagabo]

Put this in a batch file in a folder full of jpg images and it will create a list of all those with exactly 4:3 AR:

@echo off
del 4x3.txt
for %%F in (*.jpg) do (call :CHECK_AR "%%~nxF")
goto :END


:CHECK_AR

"G:\Program Files\MediaInfoCLI\MediaInfo.exe" --inform=Image;%%Width%% "%~dpnx1" > "test.txt"
set /p width= < "test.txt" 
"G:\Program Files\MediaInfoCLI\MediaInfo.exe" --inform=Image;%%Height%% "%~dpnx1" > "test.txt"
set /p height= < "test.txt"
set /a arw=%width%*3
set /a arh=%height*4
if %arw% EQU %arh% echo "%~nx1" %width%x%height% >>4x3.txt
EXIT /B


:END

del "test.txt"

The output will be in a file called 4x3.txt:

"DSCN0059.JPG" 2048x1536 
"P1010035.JPG" 2304x1728

Other files in the same folder were not 4:3.

You will need to change the path to the CLI version of MediaInfo.

[_Al_]

if just needing a list, as jagabo gets, using python, you can just use:

from subprocess import Popen, PIPE
from pathlib import Path

#https://mediaarea.net/en/MediaInfo/Download/Windows
MEDIAINFO = r"F:\tools\MediaInfo_CLI_22.09_Windows_x64\MediaInfo.exe"
DIRECTORY = r"F:\testing aspet ratio for images\images"
EXTENSION = "JPG"
SEARCHED_ASPECT_RATIO = 4/3


generator_of_paths = Path(DIRECTORY).glob(f'*.{EXTENSION}')

for path in generator_of_paths:
    w, _ = Popen(f'"{MEDIAINFO}" --inform=Image;%Width%  "{path}"', stdout=PIPE).communicate()
    h, _ = Popen(f'"{MEDIAINFO}" --inform=Image;%Height%  "{path}"', stdout=PIPE).communicate()
    w = int(w.decode())          #stdout is in bytes, needs to be decoded to string first
    h = int(h.decode())
    if SEARCHED_ASPECT_RATIO-0.1 < w/h < SEARCHED_ASPECT_RATIO+0.1:
        print(f'{w}x{h}, {path.name}')

[netmask56]

XnViewMP you can check and sort by ratio

[Anakin]

Thank you guys so much! Merry Christmas!