DIVAS (Digital Imaging and Vision Applications in Science) is a three-year NSF Improving Undergraduate STEM Education project that aims to build the computational self-efficacy, inform careers, and support the computational thinking skill of undergraduates in the natural sciences using image data as a ‘hook’. The project is led by faculty in biology, chemistry, and computer science disciplines from two primarily undergraduate institutions. The DIVAS training pipeline consists of a series of curricular and co-curricular image-analysis based interventions starting as early as the first year of college. Program elements include two professional development seminars, a week-long summer coding workshop that includes basic bash and git commands and introductory image processing using scikit-image or OpenCV libraries for Python, four weeks of special projects conducted using pair programming and weekly code reviews, and optional independent research. The image processing portion of the coding workshop has been adopted as a Data Carpentry lesson and is currently being implemented as a beta pilot. Over three years, 17 scholars have participated in the program and an additional 17 faculty, staff, and students participated in the coding workshop. Seventy-six percent of scholars are female. The majority (67%) of the first cohort of scholars are now seniors. We observed increases in the computational self-efficacy of scholars, especially in the first seminar and the coding workshop. We saw significant gains in computational thinking skill after both the workshop and pair programming projects. Eight scholars have elected to continue research projects that incorporate coding or computational thinking. A number of scholars have elected to participate in coding-related co-curricular activities or have taken additional coursework in computational fields. Two scholars have sought out graduate training in computationally-intensive fields. Overall, the project has promoted a culture of computational skill development and has contributed to the ongoing development of these skills among participants.