Techniques for generated and presenting images of items within user selected context images are presented herein. In an example embodiment, an access module can be configured to receive a first environment image. A simulation module coupled to the access module may process the environment image to identify placement areas within the image, and an imaging module may merge an item image with the environment image and filter the merged image in an erosion area. In various embodiments, the items and environments may be selected by a user and presented to a user in real-time or near-real time as part of an online shopping experience. In further embodiments, the environments may be processed from images taken by a device of the user.