When I try to make a thumbnail from a pdf file, using:
convert -density 200 -quality 100 path/to/some:file.pdf[0] thumb.jpeg
I get this error:
convert: unable to open image `file.pdf': No such file or directory # error/blob.c/OpenBlob/2712.
convert: no images defined `test.jpg' # error/convert.c/ConvertImageCommand/3210.
I think the colon in the filename is the problem here. I tried escaping it, and enclosing the filename in double quote, but no luck... Is it even possible to use this command with such filenames?
To handle colons in the filename, prefix it with a colon:
convert -density 200 -quality 100 :path/to/some:file.pdf[0] thumb.jpeg
Related
I want to add some filters to all jpg images inside a folder using the terminal like this:
convert *.jpg -colorspace Gray -sharpen 0x4.0 {}.jpg
The above line of code works fine except one issue:
I have all images inside the folder with incrementing numbers like : 1.jpg and 2.jpg.
I want the new filtered images to go to a separate folder inside the current folder and rename them like 1-filtered.jpg and 2-filtered.jpg
How can we do that?
In ImageMagick, you can do that as follows. Assume your images are in directory test1 and you want them in an existing directory called test2 within test1. So you change directories to test1 and run:
convert *.jpg -set filename:f "%t" -sharpen 0x4 "test2/%[filename:f]-filtered.jpg"
test2 must already exist. ImageMagick will not create a new directory.
"%t" gets the name without the suffix and puts it into variable f.
I need to convert a .msg file to an jpeg image. Can we do it using ImageMagick ?
I tried to run the below command,
magick mail.msg mail.jpeg
but it gives an error :
magick: no decode delegate for this image format `MSG' # error/constitute.c/ReadImage/512.
I need .msg to be converted into an image.
Can you please suggest if that is possible.
Thanks,
Abha
I am using ImageMagick to convert a gif to multiple png data. But I get this error:
convert: improper image header
/misc/lmbraid11/jingl/webscraping/dataset_2018_05_18/image2018_5_4_10_34.gif'
# error/gif.c/ReadGIFImage/1037. convert: no images defined
/misc/lmbraid11/jingl/webscraping/dataset_2018_05_18/image2018_5_4_10_34.png'
# error/convert.c/ConvertImageCommand/3210.
Here is the command:
convert -coalesce /misc/lmbraid11/jingl/webscraping/dataset_2018_05_18/image2018_5_4_10_34.gif /misc/lmbraid11/jingl/webscraping/dataset_2018_05_18/image2018_5_4_10_34.png
The gif file was downloaded from:
[http://www.niederschlagsradar.de/image.ashx?type=regioloop®io=fre][1]
ImageMagick version: Version: ImageMagick 6.8.9-9 Q16 x86_64
Any help will be appreciated.
Problem get solved. It turns out that I did not download the gif file correctly, so the gif file was corrupted.
The syntax should be:
convert image2018_5_4_10_34.gif -coalesce image2018_5_4_10_34.png
In your case, you're specifying the option before files, however it can vary on your IM version.
As per #fmw42 comment:
Note that proper ImageMagick syntax reads the input before the -coalesce. Though ImageMagick 6 is forgiving, ImageMagick 7 is not.
I've been using paperclip for a while, allowing my users to upload svg files to it. The problem here is i would like to convert that svg file into a png (or jpg, it doesnt matter). But i dont know if there is a convert_option value to transform it, or if we can do something about it.
When i run
convert file.svg file.png
in my console, i'm getting
attribute not recognized: n
attribute not recognized: u
attribute not recognized: n
attribute not recognized: u
convert: unable to open image `#': No such file or directory # error/blob.c/OpenBlob/2701.
convert: no decode delegate for this image format `' # error/constitute.c/ReadImage/504.
convert: unable to open image `#': No such file or directory # error/blob.c/OpenBlob/2701.
convert: no decode delegate for this image format `' # error/constitute.c/ReadImage/504.
I'm using macosx with imagemagick
I tested some code which works fine:
C:\root\Dropbox\WWW\TIFF\sandbox 17:17:37,86
$c:\cygwin\bin\convert.exe gallery.tif[0] -thumbnail 300x300^ -format jpg gallery.jpg
But I want to specify full path to image and it is not works - why it is not working?
It is the same image.
c:\root\Dropbox\WWW\TIFF\sandbox\gallery.tif[0] == gallery.tif[0] - why it is not working?
C:\root\Dropbox\WWW\TIFF\sandbox 17:17:59,29
$c:\cygwin\bin\convert.exe c:\root\Dropbox\WWW\TIFF\sandbox\gallery.tif[0] -thumbnail 300x300^ -format jpg gallery.jpg
convert: must specify image size `\root\Dropbox\WWW\TIFF\sandbox\gallery.tif' # error/raw.c/ReadRAWImage/136.
convert: no images defined `gallery.jpg' # error/convert.c/ConvertImageCommand/3210.
You seem to be using Cygwin. Cygwin expects a different way to specify paths. IIRC, you should use something like:
convert.exe /cygdrive/c/root/Dropbox/WWW/TIFF/sandbox/gallery.tif[0] \
-thumbnail 300x300^ -format jpg gallery.jpg