imagemagick-convert

Is there a way to convert a gray-scale image to a colour image? Here's a few JPG examples Photo 1 Photo 2 Photo 3 ImageMagick is powerful but doesn't seem capable of converting to a colourful version. Unfortunately this is not possible. Grayscale images do not contain sufficient information to create a color image. In instances where you see B&W/Grayscale images converted to color, this has been done manually in an application such as photoshop. You can use imagemagick to apply a filter but you cannot re-introduce color. http://www.imagemagick.org/Usage/color_mods/#level-colors You cannot

I have a loop that cycles through a bunch of images that I need to edit with Imagemagick. Trouble is, it's slow to have to wait for each image to be edited before editing the next one. I want to execute each of the convert commands asynchronously not waiting for the last one to finish.Is this possible with bash? Here's a basic overview of what I have: for img in * do convert $img **more params here** done I want to execute that convert command asynchronously. So I can convert all the images at once. Is this possible with bash? If you have many images, running hundreds/thousands of convert

I'm trying to add text to an image using ImageMagick. I see multiple examples using draw, label, caption, annotate et al. What is the difference between the above? I am able to test the results of the above commands with CLI, however am facing trouble when trying to run by java using IM4java. Any help with java code snippets will be useful. Here is how I perceive it - it is quite opinionated and others are welcome to edit and add their insights. label: Like other operators that contain a colon ( : ), e.g. gradient: , xc: , logo: , the label: operator generates its own canvas. That means you

I would like to use imagemagick Wand package to convert all pages of a pdf file into a single image file. I am having the following trouble though (see comments below which highlight problem) import tempfile from wand.image import Image with file('my_pdf_with_5_pages.png') as f: image = Image(file=f, format='png') save_using_filename(image) save_using_file(image) def save_using_filename(image): with tempfile.NamedTemporaryFile() as temp: # this saves all pages, but a file for each page (so 3 files) image.save(filename=temp.name) def save_using_file(image): with tempfile.NamedTemporaryFile() as