Generation of Oil-Film-Like Images by Bilateral Infra-Envelope Filter

Hiraoka, Toru; Urahama, Kiichi

doi:10.1587/transinf.2015edl8246

Cited by 2 publications

(13 citation statements)

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“…Next, we apply the proposed method to various photographic images. Next, we evaluate the quality of oil-filmlike images generated by the proposed method and the conventional method [4]. Finally, the calculation times between the proposed method and the conventional method [4] are compared quantitatively.…”

Section: Methodsmentioning

confidence: 99%

“…Next, we evaluate the quality of oil-filmlike images generated by the proposed method and the conventional method [4]. Finally, the calculation times between the proposed method and the conventional method [4] are compared quantitatively. Since oil-film-like images converged with T = 80, the value of the iteration number T is set to 80 in all experiments.…”

Section: Methodsmentioning

confidence: 99%

“…On the other hand, NPR to generate images that do not aspire to realism is also drawing attention. Although NPR has so far imitated art expressions such as watercolors [1], pencil drawings [2], and oil paintings [3], in recent years NPR that generates patterns in nature such as oil-film patterns [4], reaction-diffusion patterns [5], and cell patterns [6] has also appeared. Such NPR is implemented in many applications such as Adobe photoshop, Crip studio paint, and Hinomaru for mobile.…”

Section: Introductionmentioning

confidence: 99%

“…Oil-film patterns are expressed as colorful and smooth curves such as oil films generated on a glass or water. The conventional method [4] has a disadvantage that it takes much time to process. Therefore, we develop a fast method for generating oil-film-like images from photographic images.…”

Section: Introductionmentioning

confidence: 99%

“…The proposed method is executed by an iterative process using upper and lower smoothing filters. To verify the effectiveness of the proposed method, we conduct experiments using Lenna image, and compare processing times between the proposed method and the conventional method [4]. In addition, we investigate the way that oil-film patterns form when parameters in the proposed method are changed, and apply the proposed method to various photographic images.…”

Section: Introductionmentioning

confidence: 99%

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Acceleration Using Upper and Lower Smoothing Filters for Generating Oil-Film-Like Images

Hiraoka

Urahama

2019

IEICE Trans. Inf. & Syst.

Self Cite

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A non-photorealistic rendering method has been proposed for generating oil-film-like images from photographic images by bilateral infra-envelope filter. The conventional method has a disadvantage that it takes much time to process. We propose a method for generating oil-filmlike images that can be processed faster than the conventional method. The proposed method uses an iterative process with upper and lower smoothing filters. To verify the effectiveness of the proposed method, we conduct experiments using Lenna image. As a result of the experiments, we show that the proposed method can process faster than the conventional method. key words: non-photorealistic rendering, acceleration, oil film, upper and lower smoothing filters

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Acceleration Using Upper and Lower Smoothing Filters for Generating Oil-Film-Like Images

Hiraoka

Urahama

2019

IEICE Trans. Inf. & Syst.

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Parallel Fast Pencil Drawing Generation Algorithm Based on GPU

Qiu

Liu

et al. 2019

IEEE Access

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With the development of image processing technology, pencil drawing has been widely used in video games and mobile phone applications. However, the existing pencil drawing algorithms require a large amount of time to convert a real picture into a pencil drawing; hence, it is difficult to apply them to real-time systems. This paper proposes a parallel fast pencil drawing generation algorithm based on the graphics processing unit (GPU) to accelerate the real-time rendering process of sketch painting. The parallelism of the pencil drawing generation algorithm is identified via a theoretical analysis at first. Then, sub-algorithms of the sequential algorithm are designed in parallel using the compute unified device architecture (CUDA) programming model and executed via thread-level parallel techniques. Furthermore, an optimal cache pattern of data that reduce the access time of the most frequently used data is structured using shared memory and constant memory. Finally, task-level parallelism is achieved by the CUDA stream technology, which overlaps independent sub-tasks for further acceleration. On the CUDA platform, the experimental results demonstrate that the proposed parallel algorithm can achieve a significant increase in speedup. The proposed algorithm achieves a performance improvement of 448.59 times compared with the sequential algorithm, on 2560×1920-resolution images, and maintains a high degree of similarity with the real pencil paintings. Hence, the proposed algorithm is suitable for real-time pencil drawing rendering and has promising application prospects in non-photorealistic rendering. INDEX TERMS Non-photorealistic rendering, pencil drawing, parallel algorithm, GPU platform, convolution operation, CUDA.

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Generation of Oil-Film-Like Images by Bilateral Infra-Envelope Filter

Cited by 2 publications

References 4 publications

Acceleration Using Upper and Lower Smoothing Filters for Generating Oil-Film-Like Images

Acceleration Using Upper and Lower Smoothing Filters for Generating Oil-Film-Like Images

Parallel Fast Pencil Drawing Generation Algorithm Based on GPU

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