Questions tagged [magickwand]
106 questions
3
votes
2 answers
PhotoShop - Automate Batch to remove content outside border
Would like to automate and capture only the map part and save it to a different file i.e. any thing outside the rectangle is removed.
I tried exploring Photoshop's magic wand and refine edge tools but not sure if I am missing anything in my…
SunSmiles
- 186
- 9
3
votes
1 answer
Magickwand conversion to TIFF&CCITT group 4 compression gives uncompressed image
Trying to convert a 24 bpp bitmap to black & white TIFF with CCITT group 4 compression.
The result is a TIFF 1 bpp image as expected but it is uncompressed.
I'm using FreePascal which has magickwand bindings and the status is never…
reiniero
- 428
- 6
- 14
3
votes
0 answers
Memory leak when resizing animated gif with ImageMagick
I'm trying to resize animated gifs with ImageMagick MagickWand, but get some small memory leaks. ~3 Mb per 400 gifs. I`m not 100% sure if I'm using MagickWand right.
MagickWandGenesis();
MagickCore::MagickWand *magick_wand =…
Denis Sokolov
- 31
- 2
2
votes
2 answers
wand.image Import Error: shared library not found. You probably had not installed ImageMagick library
I am attempting to use the PDFPlumber library, which uses Wand's image format. However, upon trying to run:
from wand.image import Image
I get this error:
Traceback (most recent call last):
File…
Moe
- 21
- 1
2
votes
0 answers
How to deal with MagickWand C api having different include paths depending on system
What I mean by that is that in the include directive, on some systems the path is given by
#include
While on other systems it's
#include
I'm not sure what the correct path in any system is and I cannot…
Alex
- 31
- 4
2
votes
1 answer
Apply stroke to caption: using MagickWand
ImageMagick lets you apply a caption to an image. The caption text is automatically sized and wrapped to fit into the area that you define.
Using ImageMagick via the command line, I am able to define a stroke width and colour for this caption like…
Ivan Holmes
- 21
- 1
2
votes
1 answer
Errors converting pdf to jpg using wand, Imagemagick, and Django
I am using ImageMagick 6.7.7-10 2017-07-31 Q16 on Ubuntu 14.04, through Wand 0.4.4, Python 3.4.3 and Django 1.11. I am trying to create a jpg thumbnail of a pdf file.
On the command line, I can do this with no errors:
convert -thumbnail x300…
user1045680
- 815
- 2
- 9
- 19
2
votes
0 answers
Installation of Wand fails because of imagemagick linking error
I want to use the python package wand and installed it with
pip install Wand
but when I run the script I get the error
ImportError: MagickWand shared library not found.
You probably had not installed ImageMagick library.
Try to install:
brew…
carl
- 4,216
- 9
- 55
- 103
2
votes
1 answer
magickWand -> PNG to JPG
When converting from PNG to JPG using the MagickWand API, how do I set the background to specified color for transparent pixels? I still get only white background which I don't want.
I know there is similar question, but without answer =
How to set…
Oldes
- 937
- 1
- 9
- 24
2
votes
1 answer
SVG to PNG by PythonMagickWand
I try to convert SVG to PNG. Result picture has a white background I need transparent.
Sample of code:
wand = NewMagickWand()
MagickReadImage(wand,tmp_file_name)
transparentColor = NewPixelWand()
PixelSetMagickColor(transparentColor,…
mapcuk
- 800
- 1
- 7
- 21
2
votes
1 answer
getting the average rgb value of an image in wand
I'm wondering if it is possible to calculate the average rgb value in with wand?
I know how to do it with PIL, but in the docs of wand I can't really find how to get the image data.
The only thing I could find was this:
for row in image:
for…
Tom
- 2,545
- 5
- 31
- 71
2
votes
2 answers
'jpeg' is unsupported format error
This is method i wrote:
def pdf_page_to_png(src_pdf, pagenum=0, resolution=300, slug=''):
dst_pdf = PyPDF2.PdfFileWriter()
dst_pdf.addPage(src_pdf.getPage(pagenum))
pdf_bytes = io.BytesIO()
dst_pdf.write(pdf_bytes)
…
KylieY
- 21
- 2
2
votes
0 answers
Pass Image as file to an ImageField without saving
I have a model, lets call it FooModel, that has an image field of type models.Imagefield.
I'm also using wand.image to do some transformation and resizing to an image before I add it to the FooModel.image field.
So I have something along this…
Hashirun
- 89
- 1
- 9
2
votes
2 answers
Wand turns transparent background to black
I am trying to grayscale with python using Wand, but when I do
from wand.image import Image
with Image(filename='image.png') as img:
img.type = 'grayscale'
img.save(filename='image_gray.png')
it turns the transparent background into black.…
Tom
- 2,545
- 5
- 31
- 71
2
votes
1 answer
Get list of result files converted via Wand
Imagemagick is open source software suite for displaying, converting, and editing raster image files. Wand is a ctypes-based ImageMagick binding for Python.
How do i get the list of image files, which i got as a result of using Wand?
For example…
Mirzhan Irkegulov
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