A dummy image placeholder generator is a device that creates placeholder pictures of a particular length and format (such as jpeg or png) that may be used as a brief stand-in for real images. These placeholder pics can be beneficial for trying out and prototyping designs for web sites or other digital initiatives. They also can be used as a placeholder in conditions where the very last picture is not yet to be had. There are numerous special dummy photograph placeholder turbines available on line, each free and paid. A few popular alternatives encompass lorem pixel and unsplashed placeholder. 

There are some ways to create a dummy picture, depending on what you suggest via "dummy picture." here are some alternatives:

In case you want an easy placeholder photograph, you could use an internet placeholder photograph generator,
If you need to create a blank image with a selected size and color, you can use a photograph editing software, along with adobe photoshop or gimp.

If you need to create a random image with noise or different pattern, you may use a library consisting of pill (python imaging library) or OpenCV to generate the photograph programmatically.

In case you need to create an image with textual content or other design factors, you can use a device consisting of canvas or Adobe Illustrator.

If you're using python, and you want to create a random photo, you can use NumPy to create a random array and then use OpenCV or pill to store it as an image report.

In case you're using python, and you want a simple placeholder image, you can use the library 'requests' to get the photograph from a URL of a placeholder picture generator.