Image Filter

An image operation and filter tool depends on Pillow, just for study and communication.

Dependency

Show Help

python image_filter.py -h

List filters

python image_filter.py -l

Filter image

python image_filter.py -f grey -i images/test.jpg -o images/

Some filters need parameters

python image_filter.py -f gaussian_blur -i images/test.jpg -o images/ -a radius=3

Resize image (thumbnail)

python image_filter.py -i images/test.jpg -o out.jpg -f rgb --width=300 --height=300

Add water mark image

python image_filter.py -i images/test.jpg -o images/img_mark.jpg -f rgb -m images/water_mark.png -p RT

Add water mark text

python image_filter.py -i images/test.jpg -o images/txt_mark.jpg -f rgb -x wwtg99 --font-size=40 --font-color=100,100,100,200

rgb: RGB image
rgba: RGBA image
grey: Gray scale
hand_drawn: Hand drawn
edge_curve: Find edges
blur: Blur
contour: Contour
edge_enhance: Enhance edge
- more: More enhancement
emboss: Emboss
smooth: Smooth
- more: More smooth
sharpen: Sharpen
gaussian_blur: Gaussian blur
- radius: Blur radius
min: Picks the lowest pixel value in a window with the given size
- size: 3 or 5, default 3
median: Picks the median pixel value in a window with the given size
- size: 3 or 5, default 3
max: Picks the largest pixel value in a window with the given size
- size: 3 or 5, default 3
mode: Picks the most frequent pixel value in a box with the given size. Pixel values that occur only once or twice are ignored; if no pixel value occurs more than twice, the original pixel value is preserved
- size: 3 or 5, default 3
unsharp_mask: Unsharp mask
- radius: Blur Radius, default 2
- percent: Unsharp strength, in percent, default 150
- threshold: Threshold controls the minimum brightness change that will be sharpened, default 3
emboss_45d: Emboss from 45 degree
sharp_edge: sharp edge
sharp_center: sharp center
emboss_asym: Asymmetric emboss