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83 lines
3.2 KiB
Markdown
83 lines
3.2 KiB
Markdown
# Stitch
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A program to stitch (overlapping) image tiles of pixel-art to one big image.
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The program will use median filtering for overlapping images.
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That means that all moving object will completely disappear, and only the static pixels will be outputted.
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But this has the disadvantage of being slower, and objects that move only a little bit may become blurred.
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You can also use this program to remove moving objects from a series of photographs taken with a tripod.
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But as this tool is designed for pixel art, it only accepts png as input.
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## Source images
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The source images need to contain their coordinates in the filename, as this program doesn't align the images:
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`%d,%d.png`
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example list of files:
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``` Text
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0,0.png
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512,0.png
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-512,0.png
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512,-512.png
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```
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## Usage
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- Either run the program and follow the interactive prompt.
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- Or run the program with parameters:
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- `divide int`
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A downscaling factor. 2 will produce an image with half the side lengths. Defaults to 1.
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- `input string`
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The source path of the image tiles to be stitched. Defaults to "./..//..//output")
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- `entities`
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The path to the `entities.json` file. This contains Noita specific entity data. Defaults to "./../../output/entities.json".
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- `player-path`
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The path to the player-path.json file. This contains the tracked path of the player. Defaults to "./../../output/player-path.json".
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- `output string`
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The path and filename of the resulting stitched image. Defaults to "output.png".
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- `xmax int`
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Right bound of the output rectangle. This coordinate is not included in the output.
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- `xmin int`
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Left bound of the output rectangle. This coordinate is included in the output.
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- `ymax int`
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Lower bound of the output rectangle. This coordinate is not included in the output.
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- `ymin int`
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Upper bound of the output rectangle. This coordinate is included in the output.
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- `cleanup float`
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Enables cleanup mode with the given float as threshold. This will **DELETE** images from the input folder; no stitching will be done in this mode. A good value to start with is `0.999`, which deletes images where the sum of the min-max difference of each sub-pixel overlapping with other images is less than 99.9%% of the maximum possible sum of pixel differences.
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To output the 100x100 area that is centered at the origin use:
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``` Shell Session
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./stitch -divide 1 -xmin -50 -xmax 50 -ymin -50 -ymax 50
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```
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To remove images that would cause artifacts (You should recapture the deleted images afterwards):
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``` Shell Session
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./stitch -cleanup 0.999
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```
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To enter the parameters inside of the program:
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``` Shell Session
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./stitch
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```
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Example output:
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``` Shell Session
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Enter downscaling factor:1
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Enter input path:..\..\output
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2019/11/04 23:53:20 Starting to read tile information at "..\..\output"
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2019/11/04 23:53:32 Got 20933 tiles
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2019/11/04 23:53:32 Total size of the possible output space is (-25620,-36540)-(25620,36540)
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Enter output rectangle (xMin,yMin;xMax,yMax):-25620,-36540;25620,36540
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Enter output filename and path:output.png
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2019/11/04 23:53:35 Creating output file "output.png"
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105 / 571 [--------------->____________________________________________________________________] 18.39% 1 p/s ETA 14m0s
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```
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