From: J. P. Gilliver (John) <G6JPG-255@255soft.uk>
Subject: Re: Windows freeware to lock in a 3: or 4:3 aspect ratio for cropping
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From: "J. P. Gilliver (John)" <G6JPG-255@255soft.uk>
Newsgroups: rec.photo.digital,alt.comp.freeware,alt.windows7.general
Subject: Re: Windows freeware to lock in a 3: or 4:3 aspect ratio for cropping
Date: Sun, 18 Feb 2018 11:05:37 +0000
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In message <n0lmy7amjq04$.8fdtbl2khv2a.dlg@40tude.net>, JJ<jj4public@vfemail.net> writes:
>On Sat, 17 Feb 2018 20:50:48 -0500, nospam wrote:
>>>   This is designed to be simple, quick cropping and
>>> resizing, while retaining the best possible image
>>> quality when desired. (Crop a JPG and you'll
>>> lose some quality,
>>
>> not when it's a lossless or non-destructive crop.
>
>That's true for lossless. But the cropping itself is always destructive.

Other than that cropping obviously removes information, what do you 
mean: I thought the non-destructive crop was just that (in the part of 
the image you keep, obviously). Being as it (as implemented in 
IrfanView, anyway) crops to the nearest 16 (I think it's 16) pixel 
boundary. I assumed the reason it does that is t avoid loss.
>
>>> but you can minimize the
>>> loss, or avoid it by saving as BMP.)
>>
>> and drastically increase its size.
>
>IMO, BMP should only be used when a software doesn't support a better image
>format. How it stores 24bpp image pixels is unacceptably wasteful.

In what way - does it use two 16-bit words, or something? Or do you just 
mean it doesn't do any (even lossless) data-compression?
-- 
J. P. Gilliver. UMRA: 1960/<1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

If liberty means anything at all, it means the right to tell people what they
don't want to hear. - Preface to "Animal Farm"