langify is currently able to translate static images in your theme and images in the descriptions of your products, pages, blog posts, etc.
I am working on implementing the translation of product images in langify.
Until this feature is ready you can workaround the issue by following this tutorial.
Step 1
Open the page with the image that you want to translate.
Step 2
Now you have to search for the url of the image. Using the Chrome Development Tools makes this an easy task.
Step 3
Copy the url (in this example it is //cdn.shopify.com/s/files/1/0422/0317/products/white-t-shirt_en_1024x1024.jpg?v=1401542248) and create a new "custom content" in langify by clicking "Add new custom content" in the "Translations / Custom" section (http://langify-app.com/customs).
Step 4
Paste in the url of the image that you have copied in step 3.
Step 5
Click "Create" and navigate to the "Assets" section of your Theme
Step 6
Click "Add a new asset" and select the translated image.
Step 7
Copy the url by right-clicking the image and selecting "Copy image address" (you need only the part of the link after the "https:") that shopify has uploaded the image to (in this case it is //cdn.shopify.com/s/files/1/0422/0317/files/white-t-shirt_de.jpg?922) and navigate back to the "Translations / Custom" section in langify.
Click the content that you have created in step 5.
Step 8
Translate your image url by pasting in the url that you have copied in step 7 and click "Save".