All Questions
13 questions
0
votes
1
answer
268
views
How to reorient (shift/offset) spherical (360-deg) images via command line with e.g. Imagemagick or The GIMP?
I'm installing a remote network of spherical/360-degree cameras and need to have the images they produce all aligned with something (north). The problem is, the cameras might end up being mounted ...
- 120
1
vote
0
answers
1k
views
convert image to Indexed black and white (1-bit) palette linux
I'm trying to convert (several) PNG files to an indexed black and white (1-bit) palette image in linux via a bash script (or C code). If I use Gimp and take menu options Image, Mode, Indexed
I get ...
- 47
1
vote
2
answers
101
views
Filling the gaps made in chinese character due to line removal for ocr
Hello friends,
I have a hard time to ocr the above image due to the gaps that were made due to line removal.So could anyone kindly guide me on how to fill the gaps in chinese character using ...
- 23
3
votes
1
answer
772
views
ImageMagick chop to remove whitespace rows in image
Trying to remove white space rows in an image:
I tried :
convert image_name.png -chop 110x170 + 240x300 chopped.png
as pixels 110-170 and 240-300 need to be cut.
The resulting image should retain ...
- 854
0
votes
2
answers
541
views
Subtract a value from the Red channel only
Is there any easy way to subtract a value from the red channel? For example, let's say a pixel has RGB(140, 30, 50), I would like to see subtract 100 from red channel only, hence giving RGB(40, 30, ...
- 2,289
1
vote
4
answers
344
views
How do I circle select and crop with fu script?
I am trying to expedite the process of cropping a bunch of images using fu scripts. All the images will get cropped identically. I need to select a circle that is centered on the image and then crop ...
- 605
0
votes
1
answer
76
views
Hole filling of color pictures [closed]
I would like to perform some image editing by removing annoying element on these image such as electric poles, grids, ... (pic. 1)
The amount of edits to perform is quite significant and I wonder if ...
- 2,721
0
votes
0
answers
118
views
How to create an image from font style
I need to create multiple images for each and every character of a specific font. For instance, I want to create separate images of size say 32x32 for all characters of english alphabet with Times New ...
- 727
0
votes
0
answers
351
views
Gimp index-colors vs ImageMagick in terms of image size?
I made a small image using imagemagick, this image has only 2 colors (alpha + some other color) so I want to turn in into index-color mode.
Once I finish the image, I run the command
convert file....
- 1,494
3
votes
1
answer
4k
views
Converting tiff to mode 1 bit images
Is it possible to convert a tiff image to mode 1-bit image using command line tools. I saw it can be done with gimp but I need to run a script so I prefer a solution using packages like imagemagick ...
- 470
1
vote
1
answer
97
views
Specifying image dimensions like Gimp in ImageMagick
I am editing an image in Gimp with dimensions and size specified as below.
How to use the same parameters in ImageMagick? (I tried something like below, but unable to get the desired output):
...
- 11
17
votes
3
answers
5k
views
Split image into parts
Is there anything in imagemagick or gimp or other linux compatible tool what can automatically detect individual objects on image and either return some location of object or store each object as ...
- 22.5k
1
vote
1
answer
509
views
Image resizing, maintaing image size - beginner question
Im attempting to resize an image from 480x800 to 320x240. Below are the results. The original image has an oval shaped circle whereas the resized image has a more spherical shape. Is it possible to ...
- 53.7k