We employ picosecond dual-broadband pure-rotational coherent anti-Stokes Raman spectroscopy (CARS) in a one-dimensional (1D) imaging configuration. Temperature and ${\mathrm{O}}_2\text{:}{\mathrm{N}}_2$ concentration ratios are measured along a 1D line of up to $12\mathrm{mm}$ in length. The images consist of up to 330 individual rotational CARS (RCARS) spectra, corresponding to 330 spatially resolved volume elements in the probe volume. Signal levels are sufficient for the collection of single-laser-pulse images at temperatures of up to approximately $1200\mathrm{K}$ and shot-averaged images at flame temperatures, demonstrated at $2100\mathrm{K}$ . The precision of picosecond pure-rotational 1D imaging CARS is assessed by acquiring a series of 100 single-laser-pulse images in a heated flow of ${\mathrm{N}}_2$ from $410\mathrm{K}–1200\mathrm{K}$ and evaluating a single volume element for temperature in each image. Accuracy is demonstrated by comparing temperatures from the evaluated averaged spectra to thermocouple readings in the heated flow. Deviations from the thermocouple of $<30\mathrm{K}$ in the evaluated temperature were found at up to $1205\mathrm{K}$ . Accuracy and single-shot precision are compared to those reported for single-point nanosecond dual-broadband pure-RCARS and nanosecond 1D vibrational CARS.