Request: Crop/pad image to aspect ratio

[Danny]

Let's say we have a bunch of images with varying dimensions (w×h) and I want them all to fit into a 16:9 canvas, but I don't want to define a fixed size (like 1920×1080px). The wider side should stay the same, only the narrow side of the image should be padded with a given color or transparency until the desired aspect ration is met.

It seem like there's currently no way to achieve that, so I'm asking for a solution.

Related: https://newsgroup.xnview.com/viewtopic.php?f=79&t=38104

Basically what this script does: http://www.fmwconcepts.com/imagemagick/aspectpad/

[xnview]

So a ratio & background color?

[Danny]

So a ratio & background color?

In other words, yes. Don't scale the image content, just adjust the canvas size and fill the padded area outside with a color.

Sorry, I don't come here as often as I used to.

[xnview]

See issue for current status and some details.

[xnview]

This problem is supposed to be fixed in XnView MP 1.3.1. Please check and confirm the bug fix here.

[cday]

<Moderator's note: This post has been split from another topic>

AspectPad ??

I don't recognise this as a standard English term, a quick search seems to show it to be the name of one of the scripts in "Fred's ImageMagick Scripts" collection, possibly nothing more.

While I don't immediately understand the action performed, perhaps it could be represented by a general term based on "Fit" ?

[helmut]

Always good if new features make it into XnView. Basically, this new feature allows for resizing canvas of an image to a specific ratio is added.

ATM, this feature...
...is implemented in XnView as "AspectPad".
...is a completely new, stand-alone conversion.

"AspectPad" is difficult to understand and almost impossible to translate to other languaes. This would be a new, exotic terminology in XnView which makes things complicated. No good.
I wonder whether this little functionality could be included into XnView in a more intuitive way. Already, there is "Canvas resize" which allows for resizing the canvas of an image while not resizing the image itself. As original poster pointed out "Canvas resize" doesn't allow for resizing to a specific ratio. So I'd suggest: Add an option "Ratio" to "Canvas resize" which can be choosen as an alternative to "Size" and then we're done. A simple and intuitive solution without re-inventing the wheel.

What do other people think?

[helmut]

AspectPad ??

I don't recognise this as a standard English term, a quick search seems to show it to be the name of one of the scripts in "Fred's ImageMagick Scripts" collection, possibly nothing more.

While I don't immediately understand the action performed, perhaps it could be represented by a general term based on "Fit" ?

"AspectPad" is indeed pretty weird. I've started a discussion in topic "Request: Crop/pad image to aspect ratio"

[user0]

del

[user0]

Canvas resize dialog is the perfect place for this functionality.

btw, where can I check AspectPad in xnview?

ps. I will add some pictures from other software, just for reference. Since I already have them

[xnview]

btw, where can I check AspectPad in xnview?

in batch convert>actions

[user0]

in batch convert>actions

got it, thanks.

aspect_pad.png

Yeah, I definetly would expect this feature in 'Canvas resize' not as standalong one
As far as I understand it only adds canvas space, never crop, so I suggest to add something like "crop/add" selector (maybe use anchor point to define where to crop more).
Also entering values in number x number format is slightly more convinient than just a single nimber, e.g. 16:9 easier to use than 1.78 imho (or use both, like in Irfanview).

Some examples:
1. have ratio in Canvas resize dialog

• ACDSee
  resize_canvas_acdsee.png

• Irfanview
  resize_canvas_infa_ratio.png

2. do not have ratio in Canvas resize dialog

• FastStone
  resize_canvas_FastStone.png

• Photoshop
  resize_canvas_ps.png

• GIMP
  resize_canvas_gimp.png

[cday]

Within the present Canvas resize menu design, a new option Mode -- Fit ratio could describe the new function if new canvas, with the set Background colour, is added as required?

But would that be compatible with the rest of the menu?

[user0]

quick mockup
- extend/crop mode is not that obvious though

[helmut]

Thank you, user0 and cday for your replies. Good to see various examples handling the same issue and even mockups.

From your feedback I read that adding "Ratio" or "Aspect ratio" in "Canvas resize" makes sense. I just had a look at "Canvas resize" in batch conversion and noticed that in batch conversion there's a mode available (Normal, Square - longest side, Square - Shortest side) available which aren't available in normal "Canvas resize". Again, that's no good.

From what I can see for canvas resize three modes are needed:

• Absolute size (= resize canvas to specified width & height [pixel or percent])
• Relative size (= increase canvas width & height by specified number of pixels or percent)
• Aspect ratio (= resize canvas to a specific aspect ratio)

Depending on chosen mode additional settings are available.

Please note that "Canvas resize" and "Cropping" are related actions which should be kept separate to keep dialogs simple.