I'm trying to convert and resize GIF file to PNG file with Command :
mogrify.exe -define bmp:format=bmp3 -compress none -resize "300x200>" -antialias -format "png" -units PixelsPerInch -density 72 "img.gif"
But it's creating many images with postfix 0 to 31(img-0.png to img-31.png).
When I use '-flatten', I am getting merge single file but I just wanted first converted file (img-0.png).
Do we have any option for this?
GIF image :
'-flatten' image :
First Image :
Thanks in advance!
When you specify img.gif[0] instead of img.gif only the first frame will be saved. And it looks like you also don't need the -define bmp:format=bmp3 because you are saving the file to png.
Related
I'd like to convert an image from .jpg to .png. This works just fine:
convert input.jpg output.png
But, I'm trying to have my output go to STDOUT instead of a file, which the manual says to use "-".
I tried using:
convert input.jpg -.png
But it just creates a file called -.png.
Is it possible to convert an image from one format to another and have it go to STDOUT?
Yes, just use a command like this to convert a JPEG to a PNG on stdout:
magick input.jpg PNG:-
These specifiers work on input as well as output. So, if you have a TIFF on stdin and want a 32-bit RGBA PNG on stdout:
magick TIFF:- PNG32:-
You often need these specifiers to ensure a specific filetype when it is not explicitly given, or you want to use a different extension. So, say you have some CCD device that produces RGB data in a raw binary file called image.bin and you want ImageMagick to read it. You can tell ImageMagick the format without having to change the filename (to image.rgb) like this:
magick -size WxH RGB:image.bin result.png
The possible formats are documented here.
The king of all of these formats is MIFF which is guaranteed to be able to hold any and all things you might throw at it, including floating-point values, transparency, masks, concatenated streams... so if you need a format to pass between ImageMagick commands, MIFF is a good option. An example, just to demonstrate because it is not optimal, might to be to concatenate two images from 2 separate ImageMagick commands into a third command that makes an animated GIF:
{ magick -size 100x60 xc:red miff:- ; magick -size 100x60 xc:blue miff:- ; } | magick -delay 80 miff:- result.gif
I'm trying to convrt RAW image to PNG with Imagemagick.
Imagemagick version I'm using is 6.7.8-9.
The RAW image want to convert is:
https://drive.google.com/file/d/1V1c-ytjkLaCM3KbAc6Yxj2nfWzNkYohc/view?usp=sharing
My client gave me a big RAW image which contains more than 1000 RAW images and it is generated from Dicom. Firstly, I cropped just one image with the command (crop command did not work somehow, so used convert):
convert -size 512x512 -depth 16 UYVY:original.raw result.raw
result.raw appears good on ImageJ.
Now, I have no idea how to get PNG from it.
I tested some commands:
This one generated a very bad quality:
convert -size 512x512 -depth 16 gray:result.raw result.png
This one gets green-ish image:
convert -size 512x512 -depth 16 uyvy:result.raw result.png
If I open result.raw on ImageJ and save as PNG, it works perfectly.
I got an answer from Imagemagick community. Firstly, below code to get the first image from the original raw was wrong.
convert -size 512x512 -depth 16 UYVY:original.raw result.raw
This is the correct way (512*512*2bytes=524228)
head --bytes 524288 original.raw >firstimage.raw
Then convert to PNG:
magick -size 512x512 -depth 16 gray:firstimage.raw -evaluate AddModulus 50% -auto-level x.png
Here is another way in ImageMagick that I think is more intuitive to your signed raw data. I simply specify the data is signed using -define quantum-format=signed. Then stretch the result to full dynamic range using -auto-level.
convert -size 512x512 -depth 16 -define quantum:format=signed gray:original.raw -auto-level result.png
If using ImageMagick 7, then replace convert with magick.
I am trying to send a tiff file through fax machine.
This file seems fine with image viewer and paint, but
my boss told me that while trying to send the tif file using fax program,
he's getting pink all over his background instead of white..
and 40 kb of tif file bumps up to 600kb while trying to send the tif file..
And I used ImageMagick converting from PDF to Tiff, and the command line I used was
"C:/Program Files/ImageMagick-7.0.3-Q16/convert.exe" -density 200 -resize 1728x2291 -monochrome -compress group4 D://fax_files/201612/20161208155410.pdf D://fax_files/201612/example/1.tif
the pink image is here..
Did I make any mistakes on using ImageMagick or are there any issues that cause the problem?
If you know any, please help me out..
Thank you in advance..
I believe that to fax a tiff, it has to be binary (black/white), not color and needs to be compressed with group 4 compression.
With PDF files you need to set the density and units before reading the input and all the other arguments afterwards.
So
convert -density XXX -unit YYY image.pdf -resize ZZZ -monochrome -compress group4 image.tif
I want to crop a singlepage tif file to 2316x2720px:
convert 00000001.tif -crop 2316x2720 -repage 00000001_cropped.tif
When I use this command the result is a multipage tif file with 4 frames.
First frame with 2316x2720px and 3 Frames with the rest.
How I only get the first frame in the tif file?
Without seeing your TIF, I suspect you want this:
convert 00000001.tif -crop 2316x2720+0+0 +repage 00000001_cropped.tif
I want to save .gif conversions of other images with a specified colormap. The "-remap cmap.gif" option in Image Magick
example: convert -remap cmap.gif input.png output.gif
DOES process input.png using the specified colors from cmap.gif, but it changes the order in the output colormap. Is there a way to force Image Magick to used EXACTLY the same colormap?
I am attempting to add new images to an ancient display program that accepts .gif file input but uses a fixed colormap with no ability to alter the colormap for individual images.
Does it help to add the +dither parameter?
convert input.png -remap cmap.gif +dither output.gif