*Review* **Image Accessibility for Screen Reader Users: A Systematic Review and a Road Map**

**Uran Oh \*, Hwayeon Joh and YunJung Lee**

> Department of Computer Science and Engineering, Ewha Womans University, Seoul 03760, Korea; e.jhy@ewhain.net (H.J.); yunjung\_lee20@ewhain.net (Y.L.)

**\*** Correspondence: uran.oh@ewha.ac.kr

**Abstract:** A number of studies have been conducted to improve the accessibility of images using touchscreen devices for screen reader users. In this study, we conducted a systematic review of 33 papers to ge<sup>t</sup> a holistic understanding of existing approaches and to sugges<sup>t</sup> a research road map given identified gaps. As a result, we identified types of images, visual information, input device and feedback modalities that were studied for improving image accessibility using touchscreen devices. Findings also revealed that there is little study how the generation of image-related information can be automated. Moreover, we confirmed that the involvement of screen reader users is mostly limited to evaluations, while input from target users during the design process is particularly important for the development of assistive technologies. Then we introduce two of our recent studies on the accessibility of artwork and comics, AccessArt and AccessComics, respectively. Based on the identified key challenges, we sugges<sup>t</sup> a research agenda for improving image accessibility for screen reader users.

**Keywords:** image accessibility; touchscreen; nonvisual feedback; blind; visual impairment; systematic review
