Image smaller than recommended size while it's not

[rmens]

I have this weird issue where ODR-PadEnc always logs that the file is smaller than recommended size, but it's not.

ODR-PadEnc encoding Slideshow from '/var/dab/slides/zwfm' and DLS from '/var/dab/zwfm.txt' to 'zwmf_pad'
ODR-PadEnc using charset UTF-8 (15)
ODR-PadEnc converting DLS texts to Complete EBU Latin
ODR-PadEnc Reinitialise PAD length to 6
ODR-PadEnc Warning: Image '/var/dab/slides/zwfm/2.jpg' smaller than recommended size (240 x 240 < 320 x 240 px)

This is with Debian 12 on ARM64. Here are the properties of the file.

root@dab2:/var/dab/slides/zwfm# identify -verbose 2.jpg 
Image:
  Filename: 2.jpg
  Format: JPEG (Joint Photographic Experts Group JFIF format)
  Mime type: image/jpeg
  Class: DirectClass
  Geometry: 423x423+0+0
  Resolution: 72x72
  Print size: 5.875x5.875
  Units: PixelsPerInch
  Colorspace: sRGB
  Type: TrueColor
  Base type: Undefined
  Endianness: Undefined
  Depth: 8-bit
  Properties:
    date:create: 2024-03-17T17:46:45+00:00
    date:modify: 2024-03-17T17:46:45+00:00
    exif:ColorSpace: 1
    exif:ComponentsConfiguration: 1, 2, 3, 0
    exif:ExifOffset: 102
    exif:ExifVersion: 48, 50, 50, 49
    exif:FlashPixVersion: 48, 49, 48, 48
    exif:PixelXDimension: 423
    exif:PixelYDimension: 423
    exif:SceneCaptureType: 0
    exif:YCbCrPositioning: 1
    jpeg:colorspace: 2
    jpeg:sampling-factor: 1x1,1x1,1x1
    signature: cc8e228c4c4ec4533b8ad976936cb70a9cc18c51afbc223ac96b1756c5dcbe0e
  Artifacts:
    filename: 2.jpg
    verbose: true
  Tainted: False
  Filesize: 112650B
  Number pixels: 178929
  Pixels per second: 44.6554MB
  User time: 0.000u
  Elapsed time: 0:01.004
  Version: ImageMagick 6.9.11-60 Q16 aarch64 2021-01-25 https://imagemagick.org

[basicmaster]

Hmm, this looks strange...
Could you uploaded the affected sample image somewhere?

[rmens]

Here you go

2.zip

[basicmaster]

In this case the warning actually applies to the resized image (the image is automatically resized from 423x423 to 240x240, keeping the aspect ratio). As the new resolution (still) doesn't meet the default resolution of 320x240, the warning is shown.

I added a fix to next to make clear that the resized image is meant here.

[rmens]

Ah thanks! So this is about a not optimal aspect ratio. How about a warning that the image should be in 4x3 aspect ratio for optimal results.

[basicmaster]

This won't harm; I just extended the current warning text by an aspect ratio note.

[rmens]

After conducting tests with multiple images, it appears that everything is looking good on the next branch now. Might I suggest a 3.1 release, @basicmaster? It would be timely to do so, considering @colisee needs to rebuild some packages anyway to address #17.