Batch rotate images

  • Thread starter Thread starter Ben Wylie
  • Start date Start date
Ben said:
IS there a free app which will batch rotate images for me?
Cheers,
Ben
Click to expand...

http://www.imageresizer.com/

Mihov Image Resizer is a handy tool for batch resizing images in bmp,
gif, and jpg picture formats. You can make pictures or any kind of
images smaller or bigger - whichever you need at the time.

The second feature of the program is converting pictures between
different graphic formats. You can change from bitmap to JPEG or GIF,
from JPEG to GIF or from GIF to JPEG. Again, this can be made in batch
mode. That means that you will only have to select the images and the
program will do the rest for all selected images.

The third major feature is rotating. If you have a digital camera and
you took some upright shots you will have to turn them arround. What
better way than with Mihov Image Resizer? You can rotate the photos to
the left or to the right. This feature comes handy also when you are
scanning and are too lazy to turn the pictures...

Mihov Image Resizer is also a perfect utility for creating thumbnails,
so you can put them on your home page for faster loading or send
pictures with smaller size to family and friends by e-mail.

Currently, these languages are supported: English (default), Slovenian,
German, Afrikaans, Chinese, Dansk, Dutch, Finnish, French, Hungarian,
Italian, Lithuanian, Norwegian, Polish, Portuguese, Serbian, Slovak,
and Spannish, Swedish, and Turkish. And you can add your own language
here.

Mihov Image Resizer works in batch mode, which means more time for you!

With kind regards,

--
Henk de Jong
The Netherlands
(e-mail address removed) (Remove _NO_SPAM_)
'Links to Freeware'
http://www.linkstofreeware.nl/
http://www.linkstofreeware.vze.com/
http://home.hccnet.nl/hmdejong/
 
Henk said:
The third major feature is rotating. If you have a digital camera
and you took some upright shots you will have to turn them
arround. What better way than with Mihov Image Resizer?
Click to expand...

I tried it and af far as I can see, the rotation is lossy: For rotation
of JPEGs from a digital camera, I would recommend against using this
software.
 
Toke Eskildsen said:
I tried it and af far as I can see, the rotation is lossy: For rotation
of JPEGs from a digital camera, I would recommend against using this
software.
Click to expand...

afaik any save in jpeg format is lossy. but if the camera only takes jpeg's,
how else can you do that ? the first loss happens as soon as the camera
saves the pic on the card...

anyway for a normal 'family' use, saving with a 95% (irfanview) / 9-10-12
(photoshop) loses really little.

btw, irfanview can do batch rotating.
b -> advanced options

ciao, j.
 
javalab said:
afaik any save in jpeg format is lossy. but if the camera only
takes jpeg's, how else can you do that ? the first loss happens as
soon as the camera saves the pic on the card...
Click to expand...

Rotation, cropping and a few other manipulations can (with some
constraints) be performed losslessly. There's freely available code for
that and a lot of programs, such af IrfanView, uses it.

Take a look at http://sylvana.net/jpegcrop/losslessapps.html
anyway for a normal 'family' use, saving with a 95% (irfanview) /
9-10-12 (photoshop) loses really little.
Click to expand...

ImageResizer uses about 90% on the 0-100% scale and it can't be changed
in the current version. But I fail to see the point in losing any
information at all, if it can be avoided.

On that account, ImageResizer also erases the EXIF tags, that
practically all digital cameras add to the image. That would make it
unusable in my book, even if it performed lossless rotation.


Sorry to be so negative, but I do not find ImageResizer to be a very
usable program. Too many traps.
 
Rod said:
How do you feel about Powerbatch ?

http://www.unidreamtech.com/
Click to expand...

Strange program. It has loads of features and it looks like the
programmers has spend a lot of hours on the interface. Yet it took me
several minutes to discover how to rotate a batch of images. Oh well,
it's probably just me. It looks very powerful.

It's still lossy with regards to JPEG rotation though. Or at least I
think it is, based on a few tests I made. IrfanView btw, has the same
problem in batch mode: While individual JPEG rotation (Shift-J) is
lossless, batch JPEG rotation is not.


If we're talking 90° rotation of a bunch of JPEGs, a small .BAT script
and the free utility jpegtran is all it takes. jpegtran can be found at
http://sylvana.net/jpegcrop/jpegtran/ and a suitable script could be
FOR %%A IN (*.jpg) DO jpegtran -rotate 90 -copy all -perfect %%A r_%%A

Please note that lossless rotation of JPEGs requires the dimensions of
the images to be aligned to internal boundaries (typically 8 or 16
pixels). This is in practice not a problem with images produced by
digital cameras.
 
Strange program. It has loads of features and it looks like the
programmers has spend a lot of hours on the interface. Yet it took me
several minutes to discover how to rotate a batch of images. Oh well,
it's probably just me. It looks very powerful.
Click to expand...
It's still lossy with regards to JPEG rotation though. Or at least I
think it is, based on a few tests I made. IrfanView btw, has the same
problem in batch mode: While individual JPEG rotation (Shift-J) is
lossless, batch JPEG rotation is not.

If we're talking 90° rotation of a bunch of JPEGs, a small .BAT script
and the free utility jpegtran is all it takes. jpegtran can be found at
http://sylvana.net/jpegcrop/jpegtran/ and a suitable script could be
FOR %%A IN (*.jpg) DO jpegtran -rotate 90 -copy all -perfect %%A r_%%A

Please note that lossless rotation of JPEGs requires the dimensions of
the images to be aligned to internal boundaries (typically 8 or 16
pixels). This is in practice not a problem with images produced by
digital cameras.
Click to expand...

Thank you for the info.
 
It's a semi-batch lossless rotating program :-)

Rota v0.7 for Win95/98/Me/NT/2000 2001/01/13
http://park2.wakwak.com/~tsuruzoh/index-e.html
Rota is simple and easy to use loss-less rotation
utility for JPEG image.


/CoMa

--
Conny (CoMa) Magnusson
(e-mail address removed)
http://www.algonet.se/~hubbabub/
ICQ : 1351964
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